M65.4

Radial styloid tenosynovitis [de Quervain]

Billable / specific

M65.4 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from M65)

  • 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-) (from M65)
  • current injury - see injury of ligament or tendon by body region (from M65)
  • soft tissue disorders related to use, overuse and pressure (M70.-) (from M65)

Excludes2

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

  • arthropathic psoriasis (L40.5-) (from M65)
  • certain conditions originating in the perinatal period (P04-P96) (from M65)
  • certain infectious and parasitic diseases (A00-B99) (from M65)
  • compartment syndrome (traumatic) (T79.A-) (from M65)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M65)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M65)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from M65)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from M65)
  • neoplasms (C00-D49) (from M65)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M65)

Also known as

  • De Quervain's, disease
  • Disease, diseased, de Quervain's
  • Quervain's disease
  • Tenosynovitis, radial styloid

Parent code

  • M65Synovitis and tenosynovitisHeader

Related codes

  • M65.0Abscess of tendon sheathHeader
  • M65.1Other infective (teno)synovitisHeader
  • M65.2Calcific tendinitisHeader
  • M65.3Trigger fingerHeader
  • M65.8Other synovitis and tenosynovitisHeader
  • M65.9Synovitis and tenosynovitis, unspecifiedHeader

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