Nondisplaced trimalleolar fracture of left lower leg

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 16 more specific codes instead:

S82.855A Nondisplaced trimalleolar fracture of left lower leg, initial encounter for closed fracture
S82.855B Nondisplaced trimalleolar fracture of left lower leg, initial encounter for open fracture type I or II
S82.855C Nondisplaced trimalleolar fracture of left lower leg, initial encounter for open fracture type IIIA, IIIB, or IIIC
S82.855D Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with routine healing
S82.855E Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with routine healing
S82.855F Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing
S82.855G Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with delayed healing
S82.855H Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with delayed healing
S82.855J Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with delayed healing
S82.855K Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with nonunion
S82.855M Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with nonunion
S82.855N Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
S82.855P Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for closed fracture with malunion
S82.855Q Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type I or II with malunion
S82.855R Nondisplaced trimalleolar fracture of left lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
S82.855S Nondisplaced trimalleolar fracture of left lower leg, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 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.

FY2014 Added to the draft code set draft Nondisplaced trimalleolar fracture of left lower leg

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 S82 Fracture of lower leg, including ankle

Seventh character required

The appropriate 7th character is to be added to all codes from category S82

Seventh character values

initial encounter for open fracture NOS

Excludes1 - never coded here

traumatic amputation of lower leg (S88.-)

Excludes2 - not included here

fracture of foot, except ankle (S92.-)
periprosthetic fracture around internal prosthetic ankle joint (M97.2)
periprosthetic fracture around internal prosthetic implant of knee joint (M97.1-)

Includes

fracture of malleolus

Note

A fracture not indicated as displaced or nondisplaced should be coded to displaced
A fracture not indicated as open or closed should be coded to closed
The open fracture designations are based on the Gustilo open fracture classification

Inherited from the S80-S89 section Injuries to the knee and lower leg (S80-S89)

Excludes2 - not included here

burns and corrosions (T20-T32)
frostbite (T33-T34)
injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
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.

Fracture, traumatic > trimalleolar
Fracture, traumatic > ankle > trimalleolar
Fracture, traumatic > ankle > trimalleolar > nondisplaced

Codes in the same group

Code	Description	Status
S82.851	Displaced trimalleolar fracture of right lower leg	Not billable
S82.852	Displaced trimalleolar fracture of left lower leg	Not billable
S82.853	Displaced trimalleolar fracture of unspecified lower leg	Not billable
S82.854	Nondisplaced trimalleolar fracture of right lower leg	Not billable
S82.856	Nondisplaced trimalleolar fracture of unspecified lower leg	Not billable