Docdemic

ICD-10-CM diagnosis code

S99.829A Other specified injuries of unspecified foot, initial encounter

Billable
Yes, a complete code (FY2026)
Category
S99 Other and unspecified injuries of ankle and foot
Chapter
19. Injury, poisoning and certain other consequences of external causes

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 S99.829A? Write the note in seconds

Paste your rough notes and get a structured SOAP note. Free, no account needed.

Try the free generator

Other codes in S99

414 complete codes in this category.

Documentation tips

  • Make sure the note supports every element of the title, “Other specified injuries of unspecified 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 S99.

The international WHO ICD-10 also has S99, 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