ICD-10-CM 2027 diagnosis code

S91.031Puncture wound without foreign body, right ankle

Not billable — use a more specific codeRequires 7th character

S91.031 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S91.031

S91.031 is the ICD-10-CM diagnosis code for puncture wound without foreign body, right ankle. It belongs to category S91 (open wound of ankle, foot and toes), block S90-S99 (injuries to the ankle and foot) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S91.03 (puncture wound without foreign body of ankle), S91.031 is specifically for puncture wound without foreign body, right ankle. Related codes cover left ankle (S91.032) and unspecified ankle (S91.039).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category S91

Ainitial encounterS91.031A
Dsubsequent encounterS91.031D
SsequelaS91.031S

Notes that apply from higher levels

Instructions written at a parent level also apply to S91.031.

› From S91 Open wound of ankle, foot and toes

Excludes1

open fracture of ankle, foot and toes (S92.-with 7th character B)
traumatic amputation of ankle and foot (S98.-)

Code also

any associated wound infection

Broader instructions also apply from S90-S99 Injuries to the ankle and foot and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to S91.031.

Puncture › ankle › right

Code history

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2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about S91.031

Is S91.031 billable?: No. S91.031 is a header code. Report one of its more specific subcodes instead.