Is S20.321 a billable code?
No. S20.321 is a header code that groups 3 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
S20.321: Blister (nonthermal) of right front wall of thorax
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S20.321 groups related diagnoses under blister (nonthermal) of right front wall 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 S20.321
- S20.321ABlister (nonthermal) of right front wall of thorax, initial encounter
- S20.321DBlister (nonthermal) of right front wall of thorax, subsequent encounter
- S20.321SBlister (nonthermal) of right front wall of thorax, sequela
Other codes in S20.32 Blister (nonthermal) of front wall of thorax
S20.321 questions
What does S20.321 mean?
S20.321 is the ICD-10-CM code for Blister (nonthermal) of right front wall 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.