Other specified crystal arthropathies, ankle and foot

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 3 more specific codes instead:

M11.871 Other specified crystal arthropathies, right ankle and foot
M11.872 Other specified crystal arthropathies, left ankle and foot
M11.879 Other specified crystal arthropathies, unspecified ankle and foot

What has happened to this code

Every change the publisher made, from 2012 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.

FY2012 Added to the draft code set draft Other specified crystal arthropathies, ankle and foot

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.

Arthropyosis
Pyoarthrosis
Septic > joint
Abscess > joint
Arthropathy > crystal
Pyemia, pyemic > joint
Pyarthritis, pyarthrosis
Arthritis, arthritic > septic
Arthritis, arthritic > crystal
Arthritis, arthritic > purulent
Suppuration, suppurative > joint
Arthritis, arthritic > suppurative
Arthritis, arthritic > in > infection
Disease, diseased > joint > suppurative
Polyarthritis, polyarthropathy > infective
Arthritis, arthritic > in > coliform bacilli
Arthritis, arthritic > infectious or infective
Arthritis, arthritic > in > crystals > pyrophosphate
Arthritis, arthritic > in > crystals > dicalcium phosphate
Arthritis, arthritic > in > crystals > specified type NEC > ankle
Arthritis, arthritic > in > crystals > specified type NEC > foot joint

Codes in the same group

Code	Description	Status
M11.80	Other specified crystal arthropathies, unspecified site	Valid
M11.81	Other specified crystal arthropathies, shoulder	Not billable
M11.82	Other specified crystal arthropathies, elbow	Not billable
M11.83	Other specified crystal arthropathies, wrist	Not billable
M11.84	Other specified crystal arthropathies, hand	Not billable
M11.85	Other specified crystal arthropathies, hip	Not billable
M11.86	Other specified crystal arthropathies, knee	Not billable
M11.88	Other specified crystal arthropathies, vertebrae	Valid
M11.89	Other specified crystal arthropathies, multiple sites	Valid