ICD-10-CM › S00-T88 › S90-S99 › S94.21 Injury of deep peroneal nerve at... › S94.21XA

S94.21XA

Injury of deep peroneal nerve at ankle and foot level, right leg, initial 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.

  1. FY2007 Added to the draft code set draft Injury of deep peroneal nerve at ankle and foot level, right leg, initial 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 S94 Injury of nerves at ankle and foot level

Seventh character required

  • The appropriate 7th character is to be added to each code from category S94

Code also

  • any associated open wound (S91.-)

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.

Codes in the same group

CodeDescriptionStatus
S94.21XD Injury of deep peroneal nerve at ankle and foot level, right leg, subsequent encounter Valid
S94.21XS Injury of deep peroneal nerve at ankle and foot level, right leg, sequela Valid