M66Non-billable (header)

Spontaneous rupture of synovium and tendon

Sub-codes of M66(5)

M66 is a non-billable header. Select a sub-code to bill.

M66.0Rupture of popliteal cyst✓ BillableM66.1Rupture of synoviumHeaderM66.2Spontaneous rupture of extensor tendonsHeaderM66.3Spontaneous rupture of flexor tendonsHeaderM66.8Spontaneous rupture of other tendonsHeader

✓ Includes

  • •rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength

⚠ Excludes 2(Not included here)

  • •rotator cuff syndrome (M75.1-)
  • •rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region

Code Hierarchy

┌13Diseases of the musculoskeletal system and connective tissue (M00-M99)├M65-M67Disorders of synovium and tendon (M65-M67)├M66Spontaneous rupture of synovium and tendon
└M66Spontaneous rupture of synovium and tendon

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