`M23.8X` Other internal derangements of knee

Non-billable header with 3 child codes.

Applies from M23 Internal derangement of knee

Excludes1 (never code together)

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)

Applies from M23.8 Other internal derangements of knee

Applicable to

Laxity of ligament of knee
Snapping knee

Codes under M23.8X

M23.8X1 Other internal derangements of right knee
M23.8X2 Other internal derangements of left knee
M23.8X9 Other internal derangements of unspecified knee

Code annotations containing back-references to M23.8X

Back-references to M23.8

Type 2 Excludes: M24 Other specific joint derangements ("snapping knee (M23.8-)")

Back-references to M23

Type 2 Excludes: M24.1 Other articular cartilage disorders ("internal derangement of knee (M23.-)")
Type 2 Excludes: S83 Dislocation and sprain of joints and ligaments of knee ("internal derangement of knee (M23.-)")

Diagnosis Index entries for M23.8X

Adhesions, adhesive (postinfective) › joint › knee
Derangement › knee (recurrent) › old
Destruction, destructive › articular facet › knee
Dislocation (articular) › knee › old

Nearby codes

M23.67 Other spontaneous disruption of capsular ligament of knee
M23.671 Other spontaneous disruption of capsular ligament of right knee
M23.672 Other spontaneous disruption of capsular ligament of left knee
M23.679 Other spontaneous disruption of capsular ligament of unspecified knee
M23.8 Other internal derangements of knee
M23.8X Other internal derangements of knee (this code)
M23.8X1 Other internal derangements of right knee
M23.8X2 Other internal derangements of left knee
M23.8X9 Other internal derangements of unspecified knee
M23.9 Unspecified internal derangement of knee
M23.90 Unspecified internal derangement of unspecified knee