Is S21 a billable code?
No. S21 is a header code that groups 270 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
S21: Open wound of thorax
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S21 groups related diagnoses under open wound of thorax. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under S21
- S21.001AUnspecified open wound of right breast, initial encounter
- S21.001DUnspecified open wound of right breast, subsequent encounter
- S21.001SUnspecified open wound of right breast, sequela
- S21.002AUnspecified open wound of left breast, initial encounter
- S21.002DUnspecified open wound of left breast, subsequent encounter
- S21.002SUnspecified open wound of left breast, sequela
- S21.009AUnspecified open wound of unspecified breast, initial encounter
- S21.009DUnspecified open wound of unspecified breast, subsequent encounter
- S21.009SUnspecified open wound of unspecified breast, sequela
- S21.011ALaceration without foreign body of right breast, initial encounter
- S21.011DLaceration without foreign body of right breast, subsequent encounter
- S21.011SLaceration without foreign body of right breast, sequela
- S21.012ALaceration without foreign body of left breast, initial encounter
- S21.012DLaceration without foreign body of left breast, subsequent encounter
- S21.012SLaceration without foreign body of left breast, sequela
- S21.019ALaceration without foreign body of unspecified breast, initial encounter
- S21.019DLaceration without foreign body of unspecified breast, subsequent encounter
- S21.019SLaceration without foreign body of unspecified breast, sequela
- S21.021ALaceration with foreign body of right breast, initial encounter
- S21.021DLaceration with foreign body of right breast, subsequent encounter
- S21.021SLaceration with foreign body of right breast, sequela
- S21.022ALaceration with foreign body of left breast, initial encounter
- S21.022DLaceration with foreign body of left breast, subsequent encounter
- S21.022SLaceration with foreign body of left breast, sequela
- S21.029ALaceration with foreign body of unspecified breast, initial encounter
- S21.029DLaceration with foreign body of unspecified breast, subsequent encounter
- S21.029SLaceration with foreign body of unspecified breast, sequela
- S21.031APuncture wound without foreign body of right breast, initial encounter
- S21.031DPuncture wound without foreign body of right breast, subsequent encounter
- S21.031SPuncture wound without foreign body of right breast, sequela
- S21.032APuncture wound without foreign body of left breast, initial encounter
- S21.032DPuncture wound without foreign body of left breast, subsequent encounter
- S21.032SPuncture wound without foreign body of left breast, sequela
- S21.039APuncture wound without foreign body of unspecified breast, initial encounter
- S21.039DPuncture wound without foreign body of unspecified breast, subsequent encounter
- S21.039SPuncture wound without foreign body of unspecified breast, sequela
- S21.041APuncture wound with foreign body of right breast, initial encounter
- S21.041DPuncture wound with foreign body of right breast, subsequent encounter
- S21.041SPuncture wound with foreign body of right breast, sequela
- S21.042APuncture wound with foreign body of left breast, initial encounter
- S21.042DPuncture wound with foreign body of left breast, subsequent encounter
- S21.042SPuncture wound with foreign body of left breast, sequela
- S21.049APuncture wound with foreign body of unspecified breast, initial encounter
- S21.049DPuncture wound with foreign body of unspecified breast, subsequent encounter
- S21.049SPuncture wound with foreign body of unspecified breast, sequela
- S21.051AOpen bite of right breast, initial encounter
- S21.051DOpen bite of right breast, subsequent encounter
- S21.051SOpen bite of right breast, sequela
- S21.052AOpen bite of left breast, initial encounter
- S21.052DOpen bite of left breast, subsequent encounter
- S21.052SOpen bite of left breast, sequela
- S21.059AOpen bite of unspecified breast, initial encounter
- S21.059DOpen bite of unspecified breast, subsequent encounter
- S21.059SOpen bite of unspecified breast, sequela
- S21.101AUnspecified open wound of right front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.101DUnspecified open wound of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.101SUnspecified open wound of right front wall of thorax without penetration into thoracic cavity, sequela
- S21.102AUnspecified open wound of left front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.102DUnspecified open wound of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.102SUnspecified open wound of left front wall of thorax without penetration into thoracic cavity, sequela
- S21.109AUnspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.109DUnspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.109SUnspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, sequela
- S21.111ALaceration without foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.111DLaceration without foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.111SLaceration without foreign body of right front wall of thorax without penetration into thoracic cavity, sequela
- S21.112ALaceration without foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.112DLaceration without foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.112SLaceration without foreign body of left front wall of thorax without penetration into thoracic cavity, sequela
- S21.119ALaceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.119DLaceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.119SLaceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela
- S21.121ALaceration with foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.121DLaceration with foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.121SLaceration with foreign body of right front wall of thorax without penetration into thoracic cavity, sequela
- S21.122ALaceration with foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.122DLaceration with foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.122SLaceration with foreign body of left front wall of thorax without penetration into thoracic cavity, sequela
- S21.129ALaceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.129DLaceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.129SLaceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela
- S21.131APuncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.131DPuncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.131SPuncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, sequela
- S21.132APuncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.132DPuncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.132SPuncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity, sequela
- S21.139APuncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.139DPuncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.139SPuncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela
- S21.141APuncture wound with foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.141DPuncture wound with foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.141SPuncture wound with foreign body of right front wall of thorax without penetration into thoracic cavity, sequela
- S21.142APuncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.142DPuncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.142SPuncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity, sequela
- S21.149APuncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.149DPuncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.149SPuncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela
- S21.151AOpen bite of right front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.151DOpen bite of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.151SOpen bite of right front wall of thorax without penetration into thoracic cavity, sequela
- S21.152AOpen bite of left front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.152DOpen bite of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.152SOpen bite of left front wall of thorax without penetration into thoracic cavity, sequela
- S21.159AOpen bite of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
- S21.159DOpen bite of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.159SOpen bite of unspecified front wall of thorax without penetration into thoracic cavity, sequela
- S21.201AUnspecified open wound of right back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.201DUnspecified open wound of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.201SUnspecified open wound of right back wall of thorax without penetration into thoracic cavity, sequela
- S21.202AUnspecified open wound of left back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.202DUnspecified open wound of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.202SUnspecified open wound of left back wall of thorax without penetration into thoracic cavity, sequela
- S21.209AUnspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.209DUnspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.209SUnspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity, sequela
- S21.211ALaceration without foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.211DLaceration without foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.211SLaceration without foreign body of right back wall of thorax without penetration into thoracic cavity, sequela
- S21.212ALaceration without foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.212DLaceration without foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.212SLaceration without foreign body of left back wall of thorax without penetration into thoracic cavity, sequela
- S21.219ALaceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.219DLaceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.219SLaceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela
- S21.221ALaceration with foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.221DLaceration with foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.221SLaceration with foreign body of right back wall of thorax without penetration into thoracic cavity, sequela
- S21.222ALaceration with foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.222DLaceration with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.222SLaceration with foreign body of left back wall of thorax without penetration into thoracic cavity, sequela
- S21.229ALaceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.229DLaceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.229SLaceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela
- S21.231APuncture wound without foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.231DPuncture wound without foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.231SPuncture wound without foreign body of right back wall of thorax without penetration into thoracic cavity, sequela
- S21.232APuncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.232DPuncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.232SPuncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity, sequela
- S21.239APuncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.239DPuncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.239SPuncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela
- S21.241APuncture wound with foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.241DPuncture wound with foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.241SPuncture wound with foreign body of right back wall of thorax without penetration into thoracic cavity, sequela
- S21.242APuncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.242DPuncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.242SPuncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, sequela
- S21.249APuncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.249DPuncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.249SPuncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela
- S21.251AOpen bite of right back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.251DOpen bite of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.251SOpen bite of right back wall of thorax without penetration into thoracic cavity, sequela
- S21.252AOpen bite of left back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.252DOpen bite of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.252SOpen bite of left back wall of thorax without penetration into thoracic cavity, sequela
- S21.259AOpen bite of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
- S21.259DOpen bite of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
- S21.259SOpen bite of unspecified back wall of thorax without penetration into thoracic cavity, sequela
- S21.301AUnspecified open wound of right front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.301DUnspecified open wound of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.301SUnspecified open wound of right front wall of thorax with penetration into thoracic cavity, sequela
- S21.302AUnspecified open wound of left front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.302DUnspecified open wound of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.302SUnspecified open wound of left front wall of thorax with penetration into thoracic cavity, sequela
- S21.309AUnspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.309DUnspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.309SUnspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity, sequela
- S21.311ALaceration without foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.311DLaceration without foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.311SLaceration without foreign body of right front wall of thorax with penetration into thoracic cavity, sequela
- S21.312ALaceration without foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.312DLaceration without foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.312SLaceration without foreign body of left front wall of thorax with penetration into thoracic cavity, sequela
- S21.319ALaceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.319DLaceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.319SLaceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela
- S21.321ALaceration with foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.321DLaceration with foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.321SLaceration with foreign body of right front wall of thorax with penetration into thoracic cavity, sequela
- S21.322ALaceration with foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.322DLaceration with foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.322SLaceration with foreign body of left front wall of thorax with penetration into thoracic cavity, sequela
- S21.329ALaceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.329DLaceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.329SLaceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela
- S21.331APuncture wound without foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.331DPuncture wound without foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.331SPuncture wound without foreign body of right front wall of thorax with penetration into thoracic cavity, sequela
- S21.332APuncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.332DPuncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.332SPuncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity, sequela
- S21.339APuncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.339DPuncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.339SPuncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela
- S21.341APuncture wound with foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.341DPuncture wound with foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.341SPuncture wound with foreign body of right front wall of thorax with penetration into thoracic cavity, sequela
- S21.342APuncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.342DPuncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.342SPuncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity, sequela
- S21.349APuncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.349DPuncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.349SPuncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela
- S21.351AOpen bite of right front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.351DOpen bite of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.351SOpen bite of right front wall of thorax with penetration into thoracic cavity, sequela
- S21.352AOpen bite of left front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.352DOpen bite of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.352SOpen bite of left front wall of thorax with penetration into thoracic cavity, sequela
- S21.359AOpen bite of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
- S21.359DOpen bite of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.359SOpen bite of unspecified front wall of thorax with penetration into thoracic cavity, sequela
- S21.401AUnspecified open wound of right back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.401DUnspecified open wound of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.401SUnspecified open wound of right back wall of thorax with penetration into thoracic cavity, sequela
- S21.402AUnspecified open wound of left back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.402DUnspecified open wound of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.402SUnspecified open wound of left back wall of thorax with penetration into thoracic cavity, sequela
- S21.409AUnspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.409DUnspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.409SUnspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity, sequela
- S21.411ALaceration without foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.411DLaceration without foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.411SLaceration without foreign body of right back wall of thorax with penetration into thoracic cavity, sequela
- S21.412ALaceration without foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.412DLaceration without foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.412SLaceration without foreign body of left back wall of thorax with penetration into thoracic cavity, sequela
- S21.419ALaceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.419DLaceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.419SLaceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela
- S21.421ALaceration with foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.421DLaceration with foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.421SLaceration with foreign body of right back wall of thorax with penetration into thoracic cavity, sequela
- S21.422ALaceration with foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.422DLaceration with foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.422SLaceration with foreign body of left back wall of thorax with penetration into thoracic cavity, sequela
- S21.429ALaceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.429DLaceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.429SLaceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela
- S21.431APuncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.431DPuncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.431SPuncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity, sequela
- S21.432APuncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.432DPuncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.432SPuncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity, sequela
- S21.439APuncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.439DPuncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.439SPuncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela
- S21.441APuncture wound with foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.441DPuncture wound with foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.441SPuncture wound with foreign body of right back wall of thorax with penetration into thoracic cavity, sequela
- S21.442APuncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.442DPuncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.442SPuncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity, sequela
- S21.449APuncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.449DPuncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.449SPuncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela
- S21.451AOpen bite of right back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.451DOpen bite of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.451SOpen bite of right back wall of thorax with penetration into thoracic cavity, sequela
- S21.452AOpen bite of left back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.452DOpen bite of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.452SOpen bite of left back wall of thorax with penetration into thoracic cavity, sequela
- S21.459AOpen bite of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
- S21.459DOpen bite of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
- S21.459SOpen bite of unspecified back wall of thorax with penetration into thoracic cavity, sequela
S21 questions
What does S21 mean?
S21 is the ICD-10-CM code for Open wound of thorax. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.