FA20.Z
Rheumatoid arthritis, serology unspecified
Rheumatoid arthritis, serology unspecified
ICD-10 Equivalents(7)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Related ICF Categories(32)
ICF Core Set codes for Rheumatoid Arthritis.
Also Known As / Clinical Terms(20)
SNOMED CT ↗
- ARF - acute rheumatic fever195528001
- Rheumatoid factor positive rheumatoid arthritis239791005
- Seropositive erosive rheumatoid arthritis308143008
- Rheumatoid arthritis with erosion735599007
- Anti-citrullinated protein antibody detected772823005
- Rheumatoid factor and anti-citrullinated protein antibody positive rheumatoid arthritis1162313005
- Rheumatoid factor and anti-citrullinated protein antibody positive erosive rheumatoid arthritis1162319009
- Anti-citrullinated protein antibody positive erosive rheumatoid arthritis1162336001
- Rheumatoid arthritis in remission143441000119108
- Seropositive rheumatoid arthritis in remission16606721000119107
UMLS ↗
- Myocarditis rheumaticC0489959
- Pericarditis rheumaticC0264747
- Rheumatoid arthritis with carditisC0392469
- Rheumatoid endocarditisC2889196
- Rheumatoid heart disease with rheumatoid arthritisC2889197
- Oth rheumatoid arthritis with rheumatoid factor of unsp siteC2889356
- Rheumatoid Arthritis with Rheumatoid Factor, UnspecifiedC2889385
- Other rheumatoid arthritisC0494897
- Rheumatoid arthritis without rheumatoid factorC2889386
- Other Specified Rheumatoid Arthritis, Unspecified SiteC0477542
Frequently Asked Questions
What is the ICD-11 code for rheumatoid arthritis, serology unspecified?
The ICD-11 code for rheumatoid arthritis, serology unspecified is FA20.Z. The full clinical description is "Rheumatoid arthritis, serology unspecified".
What does ICD-11 code FA20.Z mean?
ICD-11 code FA20.Z represents “Rheumatoid arthritis, serology unspecified”. It is classified under Chapter 15: Diseases of the Musculoskeletal System or Connective Tissue.
What chapter is FA20.Z in?
FA20.Z is in Chapter 15: Diseases of the Musculoskeletal System or Connective Tissue (codes FA00-FC0Z).
What is the ICD-10 equivalent of ICD-11 code FA20.Z?
FA20.Z maps to 7 ICD-10 codes: M05.3 (Rheumatoid heart disease with rheumatoid arthritis), M05.8 (Other rheumatoid arthritis with rheumatoid factor), M05.9 (Rheumatoid arthritis with rheumatoid factor, unspecified), and 4 more. ICD-10 and ICD-11 do not always have one-to-one mappings — check the mapping type (equivalent, approximate, narrower, or broader) for each result.
What is the difference between ICD-10 and ICD-11?
ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.
What SNOMED CT codes does FA20.Z map to?
FA20.Z maps to 10 SNOMED CT concepts: 772823005, 1162336001, 143441000119108, 735599007, 1162319009, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What ICF functioning codes are related to rheumatoid arthritis, serology unspecified?
The ICF Core Set for Rheumatoid Arthritis includes 32 functioning categories covering body functions, activities, and environmental factors commonly assessed with this condition. View the related ICF categories above.
What UMLS concepts map to ICD-11 code FA20.Z?
FA20.Z is linked to 10 UMLS Concept Unique Identifiers: C0489959, C0264747, C0392469, C2889196, C2889197, and 5 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.