ICD-10-CM 2027
ICD-10 code for thorax dislocation
From the official ICD-10-CM alphabetic index entry “Dislocation (articular) › thorax”. Page updated September 29, 2026.
About coding thorax dislocation
The ICD-10-CM code for thorax dislocation is S23.20 (Dislocation of unspecified part of thorax). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on S23.20.
Within S23.2, choose S23.20 (unspecified part of thorax) only when documentation doesn't support a more specific option: other parts of thorax (S23.29).
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific thorax dislocation codes (official index)
- specified site NEC S23.29 — Dislocation of other parts of thorax
- vertebra
Common questions about thorax dislocation ICD-10 codes
What is the ICD-10 code for thorax dislocation?
- S23.20 — Dislocation of unspecified part of thorax (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: S23.29.
Is S23.20 billable?
- No. S23.20 is a header code. Report one of its more specific subcodes instead.