ICD-11 classes
15 Diseases of the musculoskeletal system or connective...
Arthropathies
Osteoarthritis

ICD-11 Osteoarthritis

Osteoarthritis (OA) can be defined as a group of distinct, but overlapping diseases, which may have different etiologies, but similar biological, morphological, and clinical outcomes affecting the articular cartilage, subchondral bone, ligaments, joint capsule, synovial membrane, and periarticular muscles. OA is the most common joint disease in persons 65 years of age and above. Its etiology is not fully understood, although there are several related factors, such as female gender, genetics, metabolism, and excessive mechanical stress. The diagnosis of OA is primarily based on clinical history and physical examination. The cardinal radiographic features of OA are focal/non-uniform narrowing of the joint space in the areas subjected to the most pressure, subchondral cysts, subchondral sclerosis, and osteophytes.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis contains 7 clarifying diagnoses:

  1. FA00 — Osteoarthritis of hip
    It contains 4 clarifying diagnoses.
  2. FA01 — Osteoarthritis of knee
    It contains 4 clarifying diagnoses.
  3. FA02 — Osteoarthritis of wrist or hand
    It contains 4 clarifying diagnoses.
  4. FA03 — Osteoarthritis of other specified joint
    It contains 4 clarifying diagnoses.
  5. FA04 — Oligoosteoarthritis
  6. FA05 — Polyosteoarthritis
  7. FA0Z — Osteoarthritis, unspecified

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