FB40.5

ICD-11 MMS 2026-01

Radial styloid tenosynovitis

Description

Inflammation of the flexor and/or extensor tendon synovial sheaths in the hand and wrist that control movement of the thumb.

Index terms

  • Radial styloid tenosynovitis
  • de Quervain disease
  • stenosans tenosynovitis
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  • tenosynovitis of radial styloid process

Exclusions from above levels

  • 22 – current injury - see injury of ligament or tendon by body region
  • FB50.1 – soft tissue disorders related to use, overuse and pressure
  • 01 – Certain infectious or parasitic diseases
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  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes
  • DA0E.8 – Temporomandibular joint disorders

Sibling codes

  • FB40.0 – Infectious tenosynovitis
  • FB40.1 – Plantar fasciitis
  • FB40.2 – Posterior tibial tendonitis
  • FB40.3 – Calcific tendinitis
  • FB40.4 – Trigger finger
  • FB40.Y – Other specified tenosynovitis
  • FB40.Z – Tenosynovitis, unspecified

Foundation entity

Radial styloid tenosynovitis – http://id.who.int/icd/entity/632176450

Part of: FB40: Tenosynovitis › 15: Diseases of the musculoskeletal system or connective tissue