M05.80

Other rheumatoid arthritis with rheumatoid factor of unspecified site

Billable / specificHCC V28 93

M05.80 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from M05)

  • Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Excludes1

Not coded here — never report together with this code.

  • rheumatic fever (I00) (from M05)
  • juvenile rheumatoid arthritis (M08.-) (from M05)
  • rheumatoid arthritis of spine (M45.-) (from M05)

Excludes2

Not included here — may be reported together when both conditions exist.

  • arthropathic psoriasis (L40.5-) (from M05)
  • certain conditions originating in the perinatal period (P04-P96) (from M05)
  • certain infectious and parasitic diseases (A00-B99) (from M05)
  • compartment syndrome (traumatic) (T79.A-) (from M05)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M05)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M05)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from M05)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from M05)
  • neoplasms (C00-D49) (from M05)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M05)

Also known as

  • Arthritis, arthritic, rheumatoid, seropositive, specified NEC

Parent code

  • M05.8Other rheumatoid arthritis with rheumatoid factorHeader

Related codes

  • M05.81Other rheumatoid arthritis with rheumatoid factor of shoulderHeader
  • M05.82Other rheumatoid arthritis with rheumatoid factor of elbowHeader
  • M05.83Other rheumatoid arthritis with rheumatoid factor of wristHeader
  • M05.84Other rheumatoid arthritis with rheumatoid factor of handHeader
  • M05.85Other rheumatoid arthritis with rheumatoid factor of hipHeader
  • M05.86Other rheumatoid arthritis with rheumatoid factor of kneeHeader
  • M05.87Other rheumatoid arthritis with rheumatoid factor of ankle and footHeader
  • M05.89Other rheumatoid arthritis with rheumatoid factor of multiple sitesBillable
  • M05.8AOther rheumatoid arthritis with rheumatoid factor of other specified siteBillable

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