Stress fracture, right ulna, subsequent encounter for fracture with malunion

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 Stress fracture, right ulna, subsequent encounter for fracture with malunion

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 M84 Disorder of continuity of bone

Excludes2 - not included here

traumatic fracture of bone-see fracture, by site

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.

March > fracture
Fracture, traumatic > march
Fracture, traumatic > fatigue
Fracture, traumatic > stress > ulna
Fracture, traumatic > stress > radius

Codes in the same group

Code	Description	Status
M84.331A	Stress fracture, right ulna, initial encounter for fracture	Valid
M84.331D	Stress fracture, right ulna, subsequent encounter for fracture with routine healing	Valid
M84.331G	Stress fracture, right ulna, subsequent encounter for fracture with delayed healing	Valid
M84.331K	Stress fracture, right ulna, subsequent encounter for fracture with nonunion	Valid
M84.331S	Stress fracture, right ulna, sequela	Valid