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T22.142A vs T22.149A

T22.142A (Burn of first degree of left axilla, initial encounter) compared with T22.149A (Burn of first degree of unspecified axilla, initial encounter), from the official CMS tabular data. T22.142A and T22.149A code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

T22.142A
Left
Burn of first degree of left axilla, initial encounter
T22.149A
Unspecified
Burn of first degree of unspecified axilla, initial encounter

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. T22.142A and T22.149A name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

T22.142ABurn of first degree of left axilla, initial encounterT22.149ABurn of first degree of unspecified axilla, initial encounter
Billing statusBillableBillable
ClassificationS00-T88 — Injury, poisoning and certain other consequences of external causesS00-T88 — Injury, poisoning and certain other consequences of external causes
DefinitionBurn of first degree of left axilla, initial encounter is a billable ICD-10-CM diagnosis code (T22.142A).Burn of first degree of unspecified axilla, initial encounter is a billable ICD-10-CM diagnosis code (T22.149A).
7th characterThe appropriate 7th character is to be added to each code from category T22The appropriate 7th character is to be added to each code from category T22
Includes
burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
Use additional code
external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
code from category T31 or T32 to identify extent of body surface involved
external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)
code from category T31 or T32 to identify extent of body surface involved

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources