ICD-10 codes for Rheumatoid Arthritis
Rheumatoid Arthritis is coded primarily under M05, M06, M05.10 in the ICD-10-CM (Clinical Modification) classification. Top-level categories include M05 (Rheumatoid arthritis with rheumatoid factor); M06 (Other rheumatoid arthritis). The 2025 ICD-10-CM code set includes 417 codes related to rheumatoid arthritis, of which 311 are billable (specific enough to appear on a medical claim).
Rheumatoid arthritis (RA) is a chronic autoimmune joint disease coded under M05 (with rheumatoid factor) and M06 (other rheumatoid arthritis, including seronegative). M05 codes specify systemic involvement, while M06 codes cover the most commonly billed form, RA without rheumatoid factor.
Total Codes
417
Billable Codes
311
Categories
2
SNOMED CT Concepts
25+
Top 12 Relevant ICD-10 Codes
The codes most commonly assigned to rheumatoid arthritis, ranked by primary-match status, billable status, and specificity. Tap a code to see its full ICD-10 detail page.
M06.9Rheumatoid arthritis, unspecified
M05.10Rheumatoid lung disease w rheumatoid arthritis of unsp site
M05Rheumatoid arthritis with rheumatoid factor
M06Other rheumatoid arthritis
M05.9Rheumatoid arthritis with rheumatoid factor, unspecified
M06.1Adult-onset Still's disease
M06.4Inflammatory polyarthropathy
M05.00Felty's syndrome, unspecified site
M05.09Felty's syndrome, multiple sites
M05.19Rheumatoid lung disease w rheumatoid arthritis mult site
M05.20Rheumatoid vasculitis with rheumatoid arthritis of unsp site
M05.29Rheumatoid vasculitis w rheumatoid arthritis mult site
Primary Code Categories
These are the top-level ICD-10-CM categories for rheumatoid arthritis. Click any code to see all specific subcodes within that group.
Billable / Specific Codes (311)
Specific ICD-10-CM codes that can be reported on medical claims for rheumatoid arthritis.
M05.00Felty's syndrome, unspecified site
M05.011Felty's syndrome, right shoulder
M05.012Felty's syndrome, left shoulder
M05.019Felty's syndrome, unspecified shoulder
M05.021Felty's syndrome, right elbow
M05.022Felty's syndrome, left elbow
M05.029Felty's syndrome, unspecified elbow
M05.031Felty's syndrome, right wrist
M05.032Felty's syndrome, left wrist
M05.039Felty's syndrome, unspecified wrist
M05.041Felty's syndrome, right hand
M05.042Felty's syndrome, left hand
M05.049Felty's syndrome, unspecified hand
M05.051Felty's syndrome, right hip
M05.052Felty's syndrome, left hip
M05.059Felty's syndrome, unspecified hip
M05.061Felty's syndrome, right knee
M05.062Felty's syndrome, left knee
M05.069Felty's syndrome, unspecified knee
M05.071Felty's syndrome, right ankle and foot
M05.072Felty's syndrome, left ankle and foot
M05.079Felty's syndrome, unspecified ankle and foot
M05.09Felty's syndrome, multiple sites
M05.10Rheumatoid lung disease w rheumatoid arthritis of unsp site
M05.111Rheumatoid lung disease w rheumatoid arthritis of r shoulder
M05.112Rheumatoid lung disease w rheumatoid arthritis of l shoulder
M05.119Rheu lung disease w rheumatoid arthritis of unsp shoulder
M05.121Rheumatoid lung disease w rheumatoid arthritis of r elbow
M05.122Rheumatoid lung disease w rheumatoid arthritis of left elbow
M05.129Rheumatoid lung disease w rheumatoid arthritis of unsp elbow
M05.131Rheumatoid lung disease w rheumatoid arthritis of r wrist
M05.132Rheumatoid lung disease w rheumatoid arthritis of left wrist
M05.139Rheumatoid lung disease w rheumatoid arthritis of unsp wrist
M05.141Rheumatoid lung disease w rheumatoid arthritis of right hand
M05.142Rheumatoid lung disease w rheumatoid arthritis of left hand
M05.149Rheumatoid lung disease w rheumatoid arthritis of unsp hand
M05.151Rheumatoid lung disease w rheumatoid arthritis of right hip
M05.152Rheumatoid lung disease w rheumatoid arthritis of left hip
M05.159Rheumatoid lung disease w rheumatoid arthritis of unsp hip
M05.161Rheumatoid lung disease w rheumatoid arthritis of right knee
M05.162Rheumatoid lung disease w rheumatoid arthritis of left knee
M05.169Rheumatoid lung disease w rheumatoid arthritis of unsp knee
M05.171Rheu lung disease w rheumatoid arthritis of right ank/ft
M05.172Rheu lung disease w rheumatoid arthritis of left ank/ft
M05.179Rheu lung disease w rheumatoid arthritis of unsp ank/ft
M05.19Rheumatoid lung disease w rheumatoid arthritis mult site
M05.20Rheumatoid vasculitis with rheumatoid arthritis of unsp site
M05.211Rheumatoid vasculitis w rheumatoid arthritis of r shoulder
M05.212Rheumatoid vasculitis w rheumatoid arthritis of l shoulder
M05.219Rheu vasculitis w rheumatoid arthritis of unsp shoulder
...and 261 more specific codes. Search all codes.
Cross-Mappings to Other Standards
ICD-10-CM codes for rheumatoid arthritis link to several adjacent terminologies. These mappings are precomputed from official sources (NLM RxNav, UMLS Metathesaurus, SNOMED CT International) and served via AutoICD's reference and translate APIs.
SNOMED CT
25+ concepts mapped from this code group. Concept IDs include 1162303002, 1162362005, 1162364006, 123777002, ....
Browse SNOMED CT directoryUMLS Metathesaurus
25+ CUIs indexed. Sample: C0409651, C0015773, C3469325, C2889108, ....
Browse UMLS directoryICD-11
ICD-11 (WHO 2022) classifies many of these conditions under different chapter and stem-code structures. Use the converter to see specific ICD-10 to ICD-11 mappings.
Open ICD-10 to ICD-11 converterFrequently Asked Questions
What is the ICD-10 code for rheumatoid arthritis?
The primary ICD-10-CM codes for rheumatoid arthritis are M05, M06, M05.10. Across all sub-categories, 417 codes are grouped under rheumatoid arthritis, with 311 marked as billable (specific enough for a medical claim).
How many ICD-10 codes are there for rheumatoid arthritis?
There are 417 ICD-10-CM codes related to rheumatoid arthritis. Of these, 311 are billable specific codes and 106 are non-billable header categories that organize the specific codes underneath them. Header codes cannot be reported on a claim by themselves.
Is there a billable ICD-10 code for rheumatoid arthritis?
Yes. 311 of the 417 ICD-10-CM codes for rheumatoid arthritis are billable. Common examples include M05.00 (Felty's syndrome, unspecified site); M05.011 (Felty's syndrome, right shoulder); M05.012 (Felty's syndrome, left shoulder). Code to the highest level of specificity supported by the documentation.
Which rheumatoid arthritis ICD-10 code should I use for billing?
The most commonly used billable codes for rheumatoid arthritis include: M05.00 (Felty's syndrome, unspecified site); M05.011 (Felty's syndrome, right shoulder); M05.012 (Felty's syndrome, left shoulder). The correct code depends on the documented clinical presentation, including any complications, episode (acute / chronic), and laterality where applicable. Always code to the highest level of specificity supported by the clinical documentation.
Is M05 a billable ICD-10 code?
No, M05 (Rheumatoid arthritis with rheumatoid factor) is a non-billable header code. You need to use a more specific child code for billing purposes.
What are the SNOMED CT concepts for rheumatoid arthritis?
The ICD-10 codes for rheumatoid arthritis map to at least 25 SNOMED CT concepts. Examples of SNOMED CT concept IDs in this group include 1162303002, 1162362005, 1162364006, 123777002, 57160007. SNOMED CT is a clinical terminology used in electronic health records; AutoICD's coding API returns SNOMED CT IDs alongside each ICD-10 code via the include_snomed=true flag.
What UMLS Concept Unique Identifiers (CUIs) cover rheumatoid arthritis?
The ICD-10 codes for rheumatoid arthritis are linked to at least 25 UMLS CUIs in the National Library of Medicine's Metathesaurus. Sample CUIs include C0409651, C0015773, C3469325, C2889108, C2889109. UMLS CUIs unify the same concept across SNOMED CT, ICD-10, ICD-11, RxNorm, MeSH, and dozens of other source vocabularies.
What are other names for rheumatoid arthritis in ICD-10?
Rheumatoid Arthritis may also be referred to as: rheumatoid arthritis, RA, seropositive RA, seronegative RA, inflammatory arthritis. The same ICD-10-CM codes apply regardless of which term appears in the clinical documentation. Synonyms are surfaced by AutoICD's NER pass and mapped to the canonical ICD-10 family above.
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