Is S13.121 a billable code?
No. S13.121 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
S13.121: Dislocation of C1/C2 cervical vertebrae
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S13.121 groups related diagnoses under dislocation of c1/c2 cervical vertebrae. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under S13.121
- S13.121ADislocation of C1/C2 cervical vertebrae, initial encounter
- S13.121DDislocation of C1/C2 cervical vertebrae, subsequent encounter
- S13.121SDislocation of C1/C2 cervical vertebrae, sequela
Other codes in S13.12 Subluxation and dislocation of C1/C2 cervical vertebrae
S13.121 questions
What does S13.121 mean?
S13.121 is the ICD-10-CM code for Dislocation of C1/C2 cervical vertebrae. 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.