10ICD Code Hub

S20.40

Header — not billable

Unspecified superficial injuries of back wall of thorax

The ICD-10 code for unspecified superficial injuries of back wall of thorax is S20.40.

S20.40 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under S20.40

Related codes in this category