ICD-10-CM diagnosis code
T25.791A Corrosion of third degree of multiple sites of right ankle and foot, initial encounter
- Billable
- Yes, a complete code (FY2026)
Encounter (7th character)
This code is for the initial encounter: the patient is receiving active treatment for the condition (for example surgery, an emergency department visit or evaluation by a new clinician).
Documenting T25.791A? Write the note in seconds
Paste your rough notes and get a structured SOAP note. Free, no account needed.
Other codes in T25
288 complete codes in this category.
- T25.732ACorrosion of third degree of left toe(s) (nail), initial encounter
- T25.732DCorrosion of third degree of left toe(s) (nail), subsequent encounter
- T25.732SCorrosion of third degree of left toe(s) (nail), sequela
- T25.739ACorrosion of third degree of unspecified toe(s) (nail), initial encounter
- T25.739DCorrosion of third degree of unspecified toe(s) (nail), subsequent encounter
- T25.739SCorrosion of third degree of unspecified toe(s) (nail), sequela
- T25.791ACorrosion of third degree of multiple sites of right ankle and foot, initial encounter
- T25.791DCorrosion of third degree of multiple sites of right ankle and foot, subsequent encounter
- T25.791SCorrosion of third degree of multiple sites of right ankle and foot, sequela
- T25.792ACorrosion of third degree of multiple sites of left ankle and foot, initial encounter
- T25.792DCorrosion of third degree of multiple sites of left ankle and foot, subsequent encounter
- T25.792SCorrosion of third degree of multiple sites of left ankle and foot, sequela
Documentation tips
- Make sure the note supports every element of the title, “Corrosion of third degree of multiple sites of right ankle and foot, initial 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 T25.
The international WHO ICD-10 also has T25, 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.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free