ICD-10-CM › M00-M99 › M20-M25 › M23.25 Derangement of posterior horn of... › M23.259
Derangement of posterior horn of lateral meniscus due to old tear or injury, unspecified knee
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
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 Derangement of posterior horn of lateral meniscus due to old tear or injury, unspecified knee
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 64 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| M23.251 | Derangement of posterior horn of lateral meniscus due to old tear or injury, right knee | Valid |
| M23.252 | Derangement of posterior horn of lateral meniscus due to old tear or injury, left knee | Valid |