M05.89 is the authoritative medical code for Other rheumatoid arthritis with rheumatoid factor of multiple sites. This classification is used in medical billing and clinical recording to specify the clinical criteria for other rheumatoid arthritis with rheumatoid factor of multiple sites (ICD-10-CM M05.89), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Other rheumatoid arthritis with rheumatoid factor of multiple sites is a billable ICD-10-CM diagnosis code M05.89. Excludes1 (not coded here): rheumatic fever I00; juvenile rheumatoid arthritis M08.-; rheumatoid arthritis of spine M45.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M05.89 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- rheumatic fever I00
- juvenile rheumatoid arthritis M08.-
- rheumatoid arthritis of spine M45.-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with M05.89?
Per Excludes1 instructions, M05.89 must not be reported with: rheumatic fever (I00); juvenile rheumatoid arthritis (M08.-); rheumatoid arthritis of spine (M45.-).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as M05.89, with their registry titles.
- M05 — Rheumatoid arthritis with rheumatoid factor
- M05-M14 — Inflammatory polyarthropathies (M05-M14)
- M05.0 — Felty's syndrome
- M05.00 — Felty's syndrome, unspecified site
- M05.01 — Felty's syndrome, shoulder
- M05.011 — Felty's syndrome, right shoulder
- M05.012 — Felty's syndrome, left shoulder
- M05.019 — Felty's syndrome, unspecified shoulder
- M05.02 — Felty's syndrome, elbow
- M05.021 — Felty's syndrome, right elbow
- M05.022 — Felty's syndrome, left elbow
- M05.029 — Felty's syndrome, unspecified elbow
- M05.03 — Felty's syndrome, wrist
- M05.031 — Felty's syndrome, right wrist
- M05.032 — Felty's syndrome, left wrist
- M05.039 — Felty's syndrome, unspecified wrist
- M05.04 — Felty's syndrome, hand
- M05.041 — Felty's syndrome, right hand
- M05.042 — Felty's syndrome, left hand
- M05.049 — Felty's syndrome, unspecified hand
- M05.05 — Felty's syndrome, hip
- M05.051 — Felty's syndrome, right hip
- M05.052 — Felty's syndrome, left hip
- M05.059 — Felty's syndrome, unspecified hip
- M05.06 — Felty's syndrome, knee
- M05.061 — Felty's syndrome, right knee
- M05.062 — Felty's syndrome, left knee
- M05.069 — Felty's syndrome, unspecified knee
- M05.07 — Felty's syndrome, ankle and foot
- M05.071 — Felty's syndrome, right ankle and foot
- M05.072 — Felty's syndrome, left ankle and foot
- M05.079 — Felty's syndrome, unspecified ankle and foot
- M05.09 — Felty's syndrome, multiple sites
- M05.1 — Rheumatoid lung disease with rheumatoid arthritis
- M05.10 — Rheumatoid lung disease with rheumatoid arthritis of unspecified site
- M05.11 — Rheumatoid lung disease with rheumatoid arthritis of shoulder
- M05.111 — Rheumatoid lung disease with rheumatoid arthritis of right shoulder
- M05.112 — Rheumatoid lung disease with rheumatoid arthritis of left shoulder
- M05.119 — Rheumatoid lung disease with rheumatoid arthritis of unspecified shoulder
- M05.12 — Rheumatoid lung disease with rheumatoid arthritis of elbow
Indexed Clinical Terms (1)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute), rheumatoid, seropositive, specified NEC, multiple sites
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: