ICD-10-CM S99.9: Unspecified injury of ankle and foot

ICD-10-CM Diagnosis Code (2025)

Official Description for S99.9

Unspecified injury of ankle and foot

Coding Notes & Guidelines for S99.9

7th Character Guidance

The appropriate 7th character is to be added to each code from subcategory S99.9

7th Character Definitions
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela

Parent Code (Less Specific):

About ICD-10-CM Code S99.9 (Unspecified injury of ankle and foot)

ICD-10-CM code S99.9 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM S99.9 became effective on October 1, 2024.

This page provides detailed information about S99.9 - Unspecified injury of ankle and foot. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Unspecified injury of ankle and foot.