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  6. 2024 ICD-10-CM Code M08
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code M08

Juvenile arthritis

ICD-10-CM Code:
M08
ICD-10 Code for:
Juvenile arthritis
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the musculoskeletal system and connective tissue
    (M00–M99)
    • Inflammatory polyarthropathies
      (M05-M14)
      • Juvenile arthritis
        (M08)

M08 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of juvenile arthritis. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Juvenile arthritis

Non-specific codes like M08 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for juvenile arthritis:

  • M08.0 for Unspecified juvenile rheumatoid arthritis - NON-BILLABLE CODE

  • Use M08.00 for Unspecified juvenile rheumatoid arthritis of unspecified site - BILLABLE CODE

  • M08.01 for Unspecified juvenile rheumatoid arthritis, shoulder - NON-BILLABLE CODE

  • M08.02 for Unspecified juvenile rheumatoid arthritis of elbow - NON-BILLABLE CODE

  • M08.03 for Unspecified juvenile rheumatoid arthritis, wrist - NON-BILLABLE CODE

  • M08.04 for Unspecified juvenile rheumatoid arthritis, hand - NON-BILLABLE CODE

  • M08.05 for Unspecified juvenile rheumatoid arthritis, hip - NON-BILLABLE CODE

  • M08.06 for Unspecified juvenile rheumatoid arthritis, knee - NON-BILLABLE CODE

  • M08.07 for Unspecified juvenile rheumatoid arthritis, ankle and foot - NON-BILLABLE CODE

  • Use M08.08 for Unspecified juvenile rheumatoid arthritis, vertebrae - BILLABLE CODE

  • Use M08.09 for Unspecified juvenile rheumatoid arthritis, multiple sites - BILLABLE CODE

  • Use M08.0A for Unspecified juvenile rheumatoid arthritis, other specified site - BILLABLE CODE

  • Use M08.1 for Juvenile ankylosing spondylitis - BILLABLE CODE

  • M08.2 for Juvenile rheumatoid arthritis with systemic onset - NON-BILLABLE CODE

  • Use M08.20 for Juvenile rheumatoid arthritis with systemic onset, unspecified site - BILLABLE CODE

  • M08.21 for Juvenile rheumatoid arthritis with systemic onset, shoulder - NON-BILLABLE CODE

  • M08.22 for Juvenile rheumatoid arthritis with systemic onset, elbow - NON-BILLABLE CODE

  • M08.23 for Juvenile rheumatoid arthritis with systemic onset, wrist - NON-BILLABLE CODE

  • M08.24 for Juvenile rheumatoid arthritis with systemic onset, hand - NON-BILLABLE CODE

  • M08.25 for Juvenile rheumatoid arthritis with systemic onset, hip - NON-BILLABLE CODE

  • M08.26 for Juvenile rheumatoid arthritis with systemic onset, knee - NON-BILLABLE CODE

  • M08.27 for Juvenile rheumatoid arthritis with systemic onset, ankle and foot - NON-BILLABLE CODE

  • Use M08.28 for Juvenile rheumatoid arthritis with systemic onset, vertebrae - BILLABLE CODE

  • Use M08.29 for Juvenile rheumatoid arthritis with systemic onset, multiple sites - BILLABLE CODE

  • Use M08.2A for Juvenile rheumatoid arthritis with systemic onset, other specified site - BILLABLE CODE

  • Use M08.3 for Juvenile rheumatoid polyarthritis (seronegative) - BILLABLE CODE

  • M08.4 for Pauciarticular juvenile rheumatoid arthritis - NON-BILLABLE CODE

  • Use M08.40 for Pauciarticular juvenile rheumatoid arthritis, unspecified site - BILLABLE CODE

  • M08.41 for Pauciarticular juvenile rheumatoid arthritis, shoulder - NON-BILLABLE CODE

  • M08.42 for Pauciarticular juvenile rheumatoid arthritis, elbow - NON-BILLABLE CODE

  • M08.43 for Pauciarticular juvenile rheumatoid arthritis, wrist - NON-BILLABLE CODE

  • M08.44 for Pauciarticular juvenile rheumatoid arthritis, hand - NON-BILLABLE CODE

  • M08.45 for Pauciarticular juvenile rheumatoid arthritis, hip - NON-BILLABLE CODE

  • M08.46 for Pauciarticular juvenile rheumatoid arthritis, knee - NON-BILLABLE CODE

  • M08.47 for Pauciarticular juvenile rheumatoid arthritis, ankle and foot - NON-BILLABLE CODE

  • Use M08.48 for Pauciarticular juvenile rheumatoid arthritis, vertebrae - BILLABLE CODE

  • Use M08.4A for Pauciarticular juvenile rheumatoid arthritis, other specified site - BILLABLE CODE

  • M08.8 for Other juvenile arthritis - NON-BILLABLE CODE

  • Use M08.80 for Other juvenile arthritis, unspecified site - BILLABLE CODE

  • M08.81 for Other juvenile arthritis, shoulder - NON-BILLABLE CODE

  • M08.82 for Other juvenile arthritis, elbow - NON-BILLABLE CODE

  • M08.83 for Other juvenile arthritis, wrist - NON-BILLABLE CODE

  • M08.84 for Other juvenile arthritis, hand - NON-BILLABLE CODE

  • M08.85 for Other juvenile arthritis, hip - NON-BILLABLE CODE

  • M08.86 for Other juvenile arthritis, knee - NON-BILLABLE CODE

  • M08.87 for Other juvenile arthritis, ankle and foot - NON-BILLABLE CODE

  • Use M08.88 for Other juvenile arthritis, other specified site - BILLABLE CODE

  • Use M08.89 for Other juvenile arthritis, multiple sites - BILLABLE CODE

  • M08.9 for Juvenile arthritis, unspecified - NON-BILLABLE CODE

  • Use M08.90 for Juvenile arthritis, unspecified, unspecified site - BILLABLE CODE

  • M08.91 for Juvenile arthritis, unspecified, shoulder - NON-BILLABLE CODE

  • M08.92 for Juvenile arthritis, unspecified, elbow - NON-BILLABLE CODE

  • M08.93 for Juvenile arthritis, unspecified, wrist - NON-BILLABLE CODE

  • M08.94 for Juvenile arthritis, unspecified, hand - NON-BILLABLE CODE

  • M08.95 for Juvenile arthritis, unspecified, hip - NON-BILLABLE CODE

  • M08.96 for Juvenile arthritis, unspecified, knee - NON-BILLABLE CODE

  • M08.97 for Juvenile arthritis, unspecified, ankle and foot - NON-BILLABLE CODE

  • Use M08.98 for Juvenile arthritis, unspecified, vertebrae - BILLABLE CODE

  • Use M08.99 for Juvenile arthritis, unspecified, multiple sites - BILLABLE CODE

  • Use M08.9A for Juvenile arthritis, unspecified, other specified site - BILLABLE CODE

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • any associated underlying condition, such as:
  • regional enteritis Crohn's disease K50
  • ulcerative colitis K51

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • arthropathy in Whipple's disease M14.8
  • Felty's syndrome M05.0
  • juvenile dermatomyositis M33.0
  • psoriatic juvenile arthropathy L40.54

Patient Education


Juvenile idiopathic arthritis

Juvenile idiopathic arthritis refers to a group of conditions involving joint inflammation (arthritis) that first appears before the age of 16. This condition is an autoimmune disorder, which means that the immune system malfunctions and attacks the body's organs and tissues, in this case the joints.

Researchers have described seven types of juvenile idiopathic arthritis. The types are distinguished by their signs and symptoms, the number of joints affected, the results of laboratory tests, and the family history.

Systemic juvenile idiopathic arthritis causes inflammation in one or more joints. A high daily fever that lasts at least 2 weeks either precedes or accompanies the arthritis. Individuals with systemic arthritis may also have a skin rash or enlargement of the lymph nodes (lymphadenopathy), liver (hepatomegaly), or spleen (splenomegaly).

Oligoarticular juvenile idiopathic arthritis (also known as oligoarthritis) is marked by the occurrence of arthritis in four or fewer joints in the first 6 months of the disease. It is divided into two subtypes depending on the course of disease. If the arthritis is confined to four or fewer joints after 6 months, then the condition is classified as persistent oligoarthritis. If more than four joints are affected after 6 months, this condition is classified as extended oligoarthritis. Individuals with oligoarthritis are at increased risk of developing inflammation of the eye (uveitis).

Rheumatoid factor positive polyarticular juvenile idiopathic arthritis (also known as polyarthritis, rheumatoid factor positive) causes inflammation in five or more joints within the first 6 months of the disease. Individuals with this condition also have a positive blood test for proteins called rheumatoid factors. This type of arthritis closely resembles rheumatoid arthritis as seen in adults.

Rheumatoid factor negative polyarticular juvenile idiopathic arthritis (also known as polyarthritis, rheumatoid factor negative) is also characterized by arthritis in five or more joints within the first 6 months of the disease. Individuals with this type, however, test negative for rheumatoid factor in the blood.

Psoriatic juvenile idiopathic arthritis involves arthritis that usually occurs in combination with a skin disorder called psoriasis. Psoriasis is a condition characterized by patches of red, irritated skin that are often covered by flaky white scales. Some affected individuals develop psoriasis before arthritis while others first develop arthritis. Other features of psoriatic arthritis include abnormalities of the fingers and nails or eye problems.

Enthesitis-related juvenile idiopathic arthritis is characterized by tenderness where the bone meets a tendon, ligament, or other connective tissue. The most commonly affected places are the hips, knees, and feet. This tenderness, known as enthesitis, accompanies the joint inflammation of arthritis. Enthesitis-related arthritis may also involve inflammation in parts of the body other than the joints.

The last type of juvenile idiopathic arthritis is called undifferentiated arthritis. This classification is given to affected individuals who do not fit into any of the above types or who fulfill the criteria for more than one type of juvenile idiopathic arthritis.


[Learn More in MedlinePlus]

Juvenile Idiopathic Arthritis (JIA)

Juvenile idiopathic arthritis is a type of arthritis that affects children. It causes joint pain, swelling, warmth, stiffness, and loss of motion.
[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.