FB42.2

ICD-11 MMS 2026-01

Ganglion

Description

This is a nodular tumour-like lesions or mucoid flesh, arising from tendon sheaths, ligaments, or joint capsule, especially of the hands, wrists, or feet. They are not true cysts as they lack epithelial wall. They are distinguished from synovial cysts by the lack of communication with a joint cavity or the synovial membrane.

Index terms

  • Ganglion
  • Ganglion of tendon sheath
  • Ganglion, not otherwise specified
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  • ganglion cyst
  • ganglion of joint
  • ganglionic cyst

Inclusions

  • Ganglion of tendon sheath

Excludes

Exclusions from above levels

  • 5C80.2 – xanthomatosis localized to tendons
  • FB51.0 – Palmar fascial fibromatosis
  • FB55 – tendinitis NOS
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  • 01 – Certain infectious or parasitic diseases
  • 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

  • FB42.0 – Acquired short Achilles tendon
  • FB42.1 – Contracture of tendon sheath
  • FB42.3 – Synovial hypertrophy, not elsewhere classified

Foundation entity

Ganglion – http://id.who.int/icd/entity/953243647

Allowed postcoordination axes

Part of: FB42: Certain specified disorders of synovium or tendon › 15: Diseases of the musculoskeletal system or connective tissue