M65

Synovitis and tenosynovitis

Non-billable header

M65 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Excludes1

Not coded here — never report together with this code.

  • chronic crepitant synovitis of hand and wrist (M70.0-)
  • current injury - see injury of ligament or tendon by body region
  • soft tissue disorders related to use, overuse and pressure (M70.-)

Excludes2

Not included here — may be reported together when both conditions exist.

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

More specific codes M65

  • M65.0Abscess of tendon sheathHeader
  • M65.1Other infective (teno)synovitisHeader
  • M65.2Calcific tendinitisHeader
  • M65.3Trigger fingerHeader
  • M65.4Radial styloid tenosynovitis [de Quervain]Billable
  • M65.8Other synovitis and tenosynovitisHeader
  • M65.9Synovitis and tenosynovitis, unspecifiedHeader

Related codes

  • M66Spontaneous rupture of synovium and tendonHeader
  • M67Other disorders of synovium and tendonHeader

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