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T33.012 vs T33.019

T33.012 (Superficial frostbite of left ear) compared with T33.019 (Superficial frostbite of unspecified ear), from the official CMS tabular data. T33.012 and T33.019 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

T33.012
Left
Superficial frostbite of left ear
T33.019
Unspecified
Superficial frostbite of unspecified ear

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. T33.012 and T33.019 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

T33.012Superficial frostbite of left earT33.019Superficial frostbite of unspecified ear
Billing statusNon-billable header

Report instead: T33.012A, T33.012D, T33.012S

Non-billable header

Report instead: T33.019A, T33.019D, T33.019S

ClassificationS00-T88 — Injury, poisoning and certain other consequences of external causesS00-T88 — Injury, poisoning and certain other consequences of external causes
DefinitionSuperficial frostbite of left ear is a non-billable ICD-10-CM category code (T33.012).Superficial frostbite of unspecified ear is a non-billable ICD-10-CM category code (T33.019).
7th characterThe appropriate 7th character is to be added to each code from category T33The appropriate 7th character is to be added to each code from category T33
Includes
frostbite with partial thickness skin loss
frostbite with partial thickness skin loss

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