S20.449
Billable codeExternal constriction of unspecified back wall of thorax
The ICD-10 code for external constriction of unspecified back wall of thorax is S20.449.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- S20.441External constriction of right back wall of thorax
- S20.442External constriction of left back wall of thorax
- S20.449External constriction of unspecified back wall of thorax