ICD-11 classes
15 Diseases of the musculoskeletal system or connective...
Arthropathies
Infection related arthropathies
FA11 — Reactive arthropathies

ICD-11 FA11 — Reactive arthropathies

A disease of the joints, caused by an infection in another part of the body, auto-immune disease, or post-vaccination. This disease is characterised by a secondary inflammation of the joints in reaction to infection, auto-immune disease, or vaccination. Common previous sites of infection are the enteric or genitourinary system.

The diagnosis includes nothing.

It excludes 2 items.

  • Acute rheumatic fever (1B40-1B42)
  • Behçet disease (4A62)

Diagnosis with code FA11 contains 5 clarifying diagnoses:

  1. FA11.0 — Arthropathy following intestinal bypass
  2. FA11.1 — Arthropathy following vaccination
  3. FA11.2 — Arthropathy following genitourinary infection
  4. FA11.Y — Other specified reactive arthropathies
  5. FA11.Z — Reactive arthropathies, unspecified

The diagnosis is included in 1 another class.

  • Arthritis mutilans (FA21.Y)

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