Other specified injuries of unspecified ankle, subsequent encounter

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Other specified injuries of ankle, unspecified side, subsequent encounter
FY2011 Draft description revised draft ~~Other specified injuries of ankle, unspecified side, subsequent encounter~~ Other specified injuries of unspecified ankle, subsequent encounter

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from the S90-S99 section Injuries to the ankle and foot (S90-S99)

Excludes2 - not included here

burns and corrosions (T20-T32)
fracture of ankle and malleolus (S82.-)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Injury > ankle > specified type NEC

Codes in the same group

Code	Description	Status
S99.819A	Other specified injuries of unspecified ankle, initial encounter	Valid
S99.819S	Other specified injuries of unspecified ankle, sequela	Valid