ICD-10-CM diagnosis code
T28.8XXD Corrosion of internal genitourinary organs, subsequent encounter
- Billable
- Yes, a complete code (FY2026)
Encounter (7th character)
This code is for a subsequent encounter: active treatment is complete and the patient is being seen during healing or recovery (for example a cast change, medication adjustment or follow-up visit).
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Other codes in T28
54 complete codes in this category.
- T28.6XXDCorrosion of esophagus, subsequent encounter
- T28.6XXSCorrosion of esophagus, sequela
- T28.7XXACorrosion of other parts of alimentary tract, initial encounter
- T28.7XXDCorrosion of other parts of alimentary tract, subsequent encounter
- T28.7XXSCorrosion of other parts of alimentary tract, sequela
- T28.8XXACorrosion of internal genitourinary organs, initial encounter
- T28.8XXDCorrosion of internal genitourinary organs, subsequent encounter
- T28.8XXSCorrosion of internal genitourinary organs, sequela
- T28.90XACorrosions of unspecified internal organs, initial encounter
- T28.90XDCorrosions of unspecified internal organs, subsequent encounter
- T28.90XSCorrosions of unspecified internal organs, sequela
- T28.911ACorrosions of right ear drum, initial encounter
Documentation tips
- Make sure the note supports every element of the title, “Corrosion of internal genitourinary organs, subsequent encounter”: 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 T28.
The international WHO ICD-10 also has T28, 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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