ICD-10-CM diagnosis code
T34.012S Frostbite with tissue necrosis of left ear, sequela
- Billable
- Yes, a complete code (FY2026)
Encounter (7th character)
This code is for a sequela: a complication or condition that arises as a direct result of the injury. The sequela itself is usually coded first, followed by this code.
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Other codes in T34
111 complete codes in this category.
- T34.011AFrostbite with tissue necrosis of right ear, initial encounter
- T34.011DFrostbite with tissue necrosis of right ear, subsequent encounter
- T34.011SFrostbite with tissue necrosis of right ear, sequela
- T34.012AFrostbite with tissue necrosis of left ear, initial encounter
- T34.012DFrostbite with tissue necrosis of left ear, subsequent encounter
- T34.012SFrostbite with tissue necrosis of left ear, sequela
- T34.019AFrostbite with tissue necrosis of unspecified ear, initial encounter
- T34.019DFrostbite with tissue necrosis of unspecified ear, subsequent encounter
- T34.019SFrostbite with tissue necrosis of unspecified ear, sequela
- T34.02XAFrostbite with tissue necrosis of nose, initial encounter
- T34.02XDFrostbite with tissue necrosis of nose, subsequent encounter
- T34.02XSFrostbite with tissue necrosis of nose, sequela
Documentation tips
- Make sure the note supports every element of the title, “Frostbite with tissue necrosis of left ear, sequela”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to T34.
The international WHO ICD-10 also has T34, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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