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T21.11

T21.11: Burn of first degree of chest wall

Non-billable headerICD-10-CM

T21.11 is a non-billable header ICD-10-CM code for burn of first degree of chest wall. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T21

A
initial encounter
D
subsequent encounter
S
sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Burn of first degree of breast

Excludes2 inherited from the categories above T21.11

Not part of this code, but both may be coded when both are present.

Written on T21: Burn and corrosion of trunk

  • burns and corrosion of axilla (T22.- with fifth character 4)
  • burns and corrosion of scapular region (T22.- with fifth character 6)
  • burns and corrosion of shoulder (T22.- with fifth character 5)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Burn›chest wall›first degree

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T21.11

3 child codes. Green means billable.

Other codes under T21.1

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.