M66Spontaneous rupture of synovium and tendon
ICD-10-CM category (non-billable header) code — part of Disorders of synovium and tendon (M65-M67)
Coding Notes
Includes
- rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength
Excludes2 (not part of this condition — may code both)
- rotator cuff syndrome (M75.1-)
- rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region
Subcategories (6)
- M66.0 Rupture of popliteal cyst
- M66.1 Rupture of synovium
- M66.2 Spontaneous rupture of extensor tendons
- M66.3 Spontaneous rupture of flexor tendons
- M66.8 Spontaneous rupture of other tendons
- M66.9 Spontaneous rupture of unspecified tendon