Derangement of unspecified meniscus due to old tear or injury

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 9 more specific codes instead:

M23.200 Derangement of unspecified lateral meniscus due to old tear or injury, right knee
M23.201 Derangement of unspecified lateral meniscus due to old tear or injury, left knee
M23.202 Derangement of unspecified lateral meniscus due to old tear or injury, unspecified knee
M23.203 Derangement of unspecified medial meniscus due to old tear or injury, right knee
M23.204 Derangement of unspecified medial meniscus due to old tear or injury, left knee
M23.205 Derangement of unspecified medial meniscus due to old tear or injury, unspecified knee
M23.206 Derangement of unspecified meniscus due to old tear or injury, right knee
M23.207 Derangement of unspecified meniscus due to old tear or injury, left knee
M23.209 Derangement of unspecified meniscus due to old tear or injury, unspecified knee

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 Derangement of unspecified meniscus due to old tear or injury

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 M23 Internal derangement of knee

Excludes1 - never coded here

ankylosis (M24.66)
deformity of knee (M21.-)
osteochondritis dissecans (M93.2)

Excludes2 - not included here

current injury - see injury of knee and lower leg (S80-S89)
recurrent dislocation or subluxation of joints (M24.4)
recurrent dislocation or subluxation of patella (M22.0-M22.1)

Inherited from the M20-M25 section Other joint disorders (M20-M25)

Excludes2 - not included here

joints of the spine (M40-M54)

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.

Change > joint
Mushrooming hip
Snapping > knee
Sprain > scapula
Change > hip joint
Avulsion > ligament
Disorder > meniscus
Division > ligament
Retention > meniscus
Detachment > ligament
Disruption > ligament
Laceration > ligament
Laceration > meniscus
Tear, torn > ligament
Derangement > meniscus
Derangement > shoulder
Detachment > cartilage
Dislocation > meniscus
Locking > joint > knee
Tear, torn > cartilage
Hemarthrosis > traumatic
Avulsion > joint > capsule
Derangement > joint > knee
Injury > shoulder > sprain
Laceration > joint capsule
Tear, torn > bucket handle
Laceration > capsule, joint
Tear, torn > capsule, joint
Tear, torn > meniscus > old
Rupture, ruptured > meniscus
Lax, laxity > ligament > knee
Rupture, ruptured > cartilage
Bucket-handle fracture or tear
Cicatrix > semilunar cartilage
Cyst > intraligamentous > knee
Disorder > joint > derangement
Synovitis > traumatic, current
Sprain > shoulder joint > blade
Subluxation > ligament, traumatic
Tear, torn > knee cartilage > old

Showing 40 of 66 index phrases.

Codes in the same group

Code	Description	Status
M23.21	Derangement of anterior horn of medial meniscus due to old tear or injury	Not billable
M23.22	Derangement of posterior horn of medial meniscus due to old tear or injury	Not billable
M23.23	Derangement of other medial meniscus due to old tear or injury	Not billable
M23.24	Derangement of anterior horn of lateral meniscus due to old tear or injury	Not billable
M23.25	Derangement of posterior horn of lateral meniscus due to old tear or injury	Not billable
M23.26	Derangement of other lateral meniscus due to old tear or injury	Not billable