2020 ICD-10-CM Diagnosis Code M05

Rheumatoid arthritis with rheumatoid factor

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • M05 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM M05 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M05 - other international versions of ICD-10 M05 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M05. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • rheumatic fever (
    ICD-10-CM Diagnosis Code I00

    Rheumatic fever without heart involvement

      2016 2017 2018 2019 2020 Billable/Specific Code
    Includes
    • arthritis, rheumatic, acute or subacute
    Type 1 Excludes
    • rheumatic fever with heart involvement (I01.0 -I01.9)
    I00
    )
  • juvenile rheumatoid arthritis (
    ICD-10-CM Diagnosis Code M08
    • M08 Juvenile arthritis
      • M08.0 Unspecified juvenile rheumatoid arthritis
        • M08.00 Unspecified juvenile rheumatoid arthritis of ...
        • M08.01 Unspecified juvenile rheumatoid arthritis, sh...
          • M08.011 Unspecified juvenile rheumatoid arthritis, ri...
          • M08.012 Unspecified juvenile rheumatoid arthritis, le...
          • M08.019 Unspecified juvenile rheumatoid arthritis, un...
        • M08.02 Unspecified juvenile rheumatoid arthritis of ...
          • M08.021 Unspecified juvenile rheumatoid arthritis, ri...
          • M08.022 Unspecified juvenile rheumatoid arthritis, le...
          • M08.029 Unspecified juvenile rheumatoid arthritis, un...
        • M08.03 Unspecified juvenile rheumatoid arthritis, wr...
          • M08.031 Unspecified juvenile rheumatoid arthritis, ri...
          • M08.032 Unspecified juvenile rheumatoid arthritis, le...
          • M08.039 Unspecified juvenile rheumatoid arthritis, un...
        • M08.04 Unspecified juvenile rheumatoid arthritis, ha...
          • M08.041 Unspecified juvenile rheumatoid arthritis, ri...
          • M08.042 Unspecified juvenile rheumatoid arthritis, le...
          • M08.049 Unspecified juvenile rheumatoid arthritis, un...
        • M08.05 Unspecified juvenile rheumatoid arthritis, hi...
          • M08.051 Unspecified juvenile rheumatoid arthritis, ri...
          • M08.052 Unspecified juvenile rheumatoid arthritis, le...
          • M08.059 Unspecified juvenile rheumatoid arthritis, un...
        • M08.06 Unspecified juvenile rheumatoid arthritis, kn...
          • M08.061 Unspecified juvenile rheumatoid arthritis, ri...
          • M08.062 Unspecified juvenile rheumatoid arthritis, le...
          • M08.069 Unspecified juvenile rheumatoid arthritis, un...
        • M08.07 Unspecified juvenile rheumatoid arthritis, an...
          • M08.071 Unspecified juvenile rheumatoid arthritis, ri...
          • M08.072 Unspecified juvenile rheumatoid arthritis, le...
          • M08.079 Unspecified juvenile rheumatoid arthritis, un...
        • M08.08 Unspecified juvenile rheumatoid arthritis, ve...
        • M08.09 Unspecified juvenile rheumatoid arthritis, mu...
      • M08.1 Juvenile ankylosing spondylitis
      • M08.2 Juvenile rheumatoid arthritis with systemic o...
        • M08.20 Juvenile rheumatoid arthritis with systemic o...
        • M08.21 Juvenile rheumatoid arthritis with systemic o...
          • M08.211 Juvenile rheumatoid arthritis with systemic o...
          • M08.212 Juvenile rheumatoid arthritis with systemic o...
          • M08.219 Juvenile rheumatoid arthritis with systemic o...
        • M08.22 Juvenile rheumatoid arthritis with systemic o...
          • M08.221 Juvenile rheumatoid arthritis with systemic o...
          • M08.222 Juvenile rheumatoid arthritis with systemic o...
          • M08.229 Juvenile rheumatoid arthritis with systemic o...
        • M08.23 Juvenile rheumatoid arthritis with systemic o...
          • M08.231 Juvenile rheumatoid arthritis with systemic o...
          • M08.232 Juvenile rheumatoid arthritis with systemic o...
          • M08.239 Juvenile rheumatoid arthritis with systemic o...
        • M08.24 Juvenile rheumatoid arthritis with systemic o...
          • M08.241 Juvenile rheumatoid arthritis with systemic o...
          • M08.242 Juvenile rheumatoid arthritis with systemic o...
          • M08.249 Juvenile rheumatoid arthritis with systemic o...
        • M08.25 Juvenile rheumatoid arthritis with systemic o...
          • M08.251 Juvenile rheumatoid arthritis with systemic o...
          • M08.252 Juvenile rheumatoid arthritis with systemic o...
          • M08.259 Juvenile rheumatoid arthritis with systemic o...
        • M08.26 Juvenile rheumatoid arthritis with systemic o...
          • M08.261 Juvenile rheumatoid arthritis with systemic o...
          • M08.262 Juvenile rheumatoid arthritis with systemic o...
          • M08.269 Juvenile rheumatoid arthritis with systemic o...
        • M08.27 Juvenile rheumatoid arthritis with systemic o...
          • M08.271 Juvenile rheumatoid arthritis with systemic o...
          • M08.272 Juvenile rheumatoid arthritis with systemic o...
          • M08.279 Juvenile rheumatoid arthritis with systemic o...
        • M08.28 Juvenile rheumatoid arthritis with systemic o...
        • M08.29 Juvenile rheumatoid arthritis with systemic o...
      • M08.3 Juvenile rheumatoid polyarthritis (seronegati...
      • M08.4 Pauciarticular juvenile rheumatoid arthritis
        • M08.40 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.41 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.411 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.412 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.419 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.42 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.421 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.422 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.429 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.43 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.431 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.432 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.439 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.44 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.441 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.442 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.449 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.45 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.451 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.452 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.459 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.46 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.461 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.462 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.469 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.47 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.471 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.472 Pauciarticular juvenile rheumatoid arthritis,...
          • M08.479 Pauciarticular juvenile rheumatoid arthritis,...
        • M08.48 Pauciarticular juvenile rheumatoid arthritis,...
      • M08.8 Other juvenile arthritis
        • M08.80 …… unspecified site
        • M08.81 Other juvenile arthritis, shoulder
          • M08.811 Other juvenile arthritis, right shoulder
          • M08.812 Other juvenile arthritis, left shoulder
          • M08.819 Other juvenile arthritis, unspecified shoulde...
        • M08.82 Other juvenile arthritis, elbow
          • M08.821 Other juvenile arthritis, right elbow
          • M08.822 Other juvenile arthritis, left elbow
          • M08.829 Other juvenile arthritis, unspecified elbow
        • M08.83 Other juvenile arthritis, wrist
          • M08.831 Other juvenile arthritis, right wrist
          • M08.832 Other juvenile arthritis, left wrist
          • M08.839 Other juvenile arthritis, unspecified wrist
        • M08.84 Other juvenile arthritis, hand
          • M08.841 Other juvenile arthritis, right hand
          • M08.842 Other juvenile arthritis, left hand
          • M08.849 Other juvenile arthritis, unspecified hand
        • M08.85 Other juvenile arthritis, hip
          • M08.851 Other juvenile arthritis, right hip
          • M08.852 Other juvenile arthritis, left hip
          • M08.859 Other juvenile arthritis, unspecified hip
        • M08.86 Other juvenile arthritis, knee
          • M08.861 Other juvenile arthritis, right knee
          • M08.862 Other juvenile arthritis, left knee
          • M08.869 Other juvenile arthritis, unspecified knee
        • M08.87 Other juvenile arthritis, ankle and foot
          • M08.871 Other juvenile arthritis, right ankle and foo...
          • M08.872 Other juvenile arthritis, left ankle and foot...
          • M08.879 Other juvenile arthritis, unspecified ankle a...
        • M08.88 Other juvenile arthritis, other specified sit...
        • M08.89 …… multiple sites
      • M08.9 Juvenile arthritis, unspecified
        • M08.90 Juvenile arthritis, unspecified, unspecified ...
        • M08.91 Juvenile arthritis, unspecified, shoulder
          • M08.911 Juvenile arthritis, unspecified, right should...
          • M08.912 Juvenile arthritis, unspecified, left shoulde...
          • M08.919 Juvenile arthritis, unspecified, unspecified ...
        • M08.92 Juvenile arthritis, unspecified, elbow
          • M08.921 Juvenile arthritis, unspecified, right elbow
          • M08.922 Juvenile arthritis, unspecified, left elbow
          • M08.929 Juvenile arthritis, unspecified, unspecified ...
        • M08.93 Juvenile arthritis, unspecified, wrist
          • M08.931 Juvenile arthritis, unspecified, right wrist
          • M08.932 Juvenile arthritis, unspecified, left wrist
          • M08.939 Juvenile arthritis, unspecified, unspecified ...
        • M08.94 Juvenile arthritis, unspecified, hand
          • M08.941 Juvenile arthritis, unspecified, right hand
          • M08.942 Juvenile arthritis, unspecified, left hand
          • M08.949 Juvenile arthritis, unspecified, unspecified ...
        • M08.95 Juvenile arthritis, unspecified, hip
          • M08.951 Juvenile arthritis, unspecified, right hip
          • M08.952 Juvenile arthritis, unspecified, left hip
          • M08.959 Juvenile arthritis, unspecified, unspecified ...
        • M08.96 Juvenile arthritis, unspecified, knee
          • M08.961 Juvenile arthritis, unspecified, right knee
          • M08.962 Juvenile arthritis, unspecified, left knee
          • M08.969 Juvenile arthritis, unspecified, unspecified ...
        • M08.97 Juvenile arthritis, unspecified, ankle and fo...
          • M08.971 Juvenile arthritis, unspecified, right ankle ...
          • M08.972 Juvenile arthritis, unspecified, left ankle a...
          • M08.979 Juvenile arthritis, unspecified, unspecified ...
        • M08.98 …… vertebrae
        • M08.99 Juvenile arthritis, unspecified, multiple sit...
    M08.-
    )
  • rheumatoid arthritis of spine (
    ICD-10-CM Diagnosis Code M45
    • M45 Ankylosing spondylitis
      • M45.0 Ankylosing spondylitis of multiple sites in s...
      • M45.1 Ankylosing spondylitis of occipito-atlanto-ax...
      • M45.2 Ankylosing spondylitis of cervical region
      • M45.3 Ankylosing spondylitis of cervicothoracic reg...
      • M45.4 Ankylosing spondylitis of thoracic region
      • M45.5 Ankylosing spondylitis of thoracolumbar regio...
      • M45.6 Ankylosing spondylitis lumbar region
      • M45.7 Ankylosing spondylitis of lumbosacral region
      • M45.8 Ankylosing spondylitis sacral and sacrococcyg...
      • M45.9 Ankylosing spondylitis of unspecified sites i...
    M45.-
    )
The following code(s) above M05 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M05:
  • M00-M99
    2020 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • arthropathic psoriasis (L40.5-)
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • compartment syndrome (traumatic) (T79.A-)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the musculoskeletal system and connective tissue
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to M05:
  • Code Also: I27.21
    ICD-10-CM Diagnosis Code I27.21

    Secondary pulmonary arterial hypertension

      2018 - New Code 2019 2020 Billable/Specific Code
    Applicable To
    • (Associated) (drug-induced) (toxin-induced) pulmonary arterial hypertension NOS
    • (Associated) (drug-induced) (toxin-induced) (secondary) group 1 pulmonary hypertension
    Code Also
    • associated conditions if applicable, or adverse effects of drugs or toxins, such as:
    • adverse effect of appetite depressants (T50.5X5)
    • congenital heart disease (Q20-Q28)
    • human immunodeficiency virus [HIV] disease (B20)
    • polymyositis (M33.2-)
    • portal hypertension (K76.6)
    • rheumatoid arthritis (M05.-)
    • schistosomiasis (B65.-)
    • Sjögren syndrome (M35.0-)
    • systemic sclerosis (M34.-)
ICD-10-CM Codes Adjacent To M05
M02.872 Other reactive arthropathies, left ankle and foot
M02.879 Other reactive arthropathies, unspecified ankle and foot
M02.88 …… vertebrae
M02.89 …… multiple sites
M02.9 Reactive arthropathy, unspecified
M04 Autoinflammatory syndromes
M04.1 Periodic fever syndromes
M04.2 Cryopyrin-associated periodic syndromes
M04.8 Other autoinflammatory syndromes
M04.9 Autoinflammatory syndrome, unspecified
M05 Rheumatoid arthritis with rheumatoid factor
M05.0 Felty's syndrome
M05.00 …… 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

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.