2021

  1. ICD-10-CM Codes
    2. ›
  2. M00-M99 Diseases of the musculoskeletal system and connective tissue
    3. ›
  3. M05-M1A Inflammatory polyarthropathies
    4. ›
  4. M08- Juvenile arthritis
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code M08.1

2021 ICD-10-CM Diagnosis Code M08.1

Juvenile ankylosing spondylitis

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M08.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM M08.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M08.1 - other international versions of ICD-10 M08.1 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 M08.1. 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.
  • ankylosing spondylitis in adults (
    ICD-10-CM Diagnosis Code M45.0

    Ankylosing spondylitis of multiple sites in spine

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    M45.0-
    )
The following code(s) above M08.1 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 M08.1:
  • M00-M99
    2021 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
  • M08
    ICD-10-CM Diagnosis Code M08

    Juvenile arthritis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code Also
    • any associated underlying condition, such as:
    • regional enteritis [Crohn's disease] (K50.-)
    • ulcerative colitis (K51.-)
    Type 1 Excludes
    • arthropathy in Whipple's disease (M14.8)
    • Felty's syndrome (M05.0)
    • juvenile dermatomyositis (M33.0-)
    • psoriatic juvenile arthropathy (L40.54)
    Juvenile arthritis
ICD-10-CM M08.1 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 545 Connective tissue disorders with mcc
  • 546 Connective tissue disorders with cc
  • 547 Connective tissue disorders without cc/mcc

Convert M08.1 to ICD-9-CM

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
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to M08.1:
  • Type 1 Excludes: M45
    ICD-10-CM Diagnosis Code M45

    Ankylosing spondylitis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Rheumatoid arthritis of spine
    Type 1 Excludes
    • arthropathy in Reiter's disease (M02.3-)
    • juvenile (ankylosing) spondylitis (M08.1)
    Type 2 Excludes
    • Behçet's disease (M35.2)

Diagnosis Index entries containing back-references to M08.1:
  • Spondylitis (chronic) - see also Spondylopathy, inflammatory
    • ankylosing (chronic) M45.9
      ICD-10-CM Diagnosis Code M45.9

      Ankylosing spondylitis of unspecified sites in spine

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • juvenile M08.1
    • juvenile ankylosing M08.1 (chronic)

ICD-10-CM Codes Adjacent To M08.1
M08.061 Unspecified juvenile rheumatoid arthritis, right knee
M08.062 Unspecified juvenile rheumatoid arthritis, left knee
M08.069 Unspecified juvenile rheumatoid arthritis, unspecified knee
M08.07 Unspecified juvenile rheumatoid arthritis, ankle and foot
M08.071 Unspecified juvenile rheumatoid arthritis, right ankle and foot
M08.072 Unspecified juvenile rheumatoid arthritis, left ankle and foot
M08.079 Unspecified juvenile rheumatoid arthritis, unspecified ankle and foot
M08.08 …… vertebrae
M08.09 …… multiple sites
M08.0A …… other specified site
M08.1 Juvenile ankylosing spondylitis
M08.2 Juvenile rheumatoid arthritis with systemic onset
M08.20 …… unspecified site
M08.21 Juvenile rheumatoid arthritis with systemic onset, shoulder
M08.211 Juvenile rheumatoid arthritis with systemic onset, right shoulder
M08.212 Juvenile rheumatoid arthritis with systemic onset, left shoulder
M08.219 Juvenile rheumatoid arthritis with systemic onset, unspecified shoulder
M08.22 Juvenile rheumatoid arthritis with systemic onset, elbow
M08.221 Juvenile rheumatoid arthritis with systemic onset, right elbow
M08.222 Juvenile rheumatoid arthritis with systemic onset, left elbow
M08.229 Juvenile rheumatoid arthritis with systemic onset, unspecified elbow

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

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