ICD-10-CM Diagnosis Code M12 - Other and unspecified arthropathy (original) (raw)
ICD List 2025-2026 Edition
- Home
- ICD-10-CM Codes
- M00–M99
- M05-M14
- M12
- 2026 ICD-10-CM Code M12
Other and unspecified arthropathy
ICD-10-CM Code:
M12
ICD-10 Code for:
Other and unspecified arthropathy
Is Billable?
Not Valid for Submission
Code Navigator:
M12 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of other and unspecified arthropathy. The code is not specific and is NOT valid for the year 2026 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.
Unspecified diagnosis codes like M12 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Non-specific codes like M12 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for other and unspecified arthropathy:
M12.0 for Chronic postrheumatic arthropathy [Jaccoud]
Use M12.00 for Chronic postrheumatic arthropathy [Jaccoud], unspecified site
M12.01 for Chronic postrheumatic arthropathy [Jaccoud], shoulder
M12.02 for Chronic postrheumatic arthropathy [Jaccoud], elbow
M12.03 for Chronic postrheumatic arthropathy [Jaccoud], wrist
M12.04 for Chronic postrheumatic arthropathy [Jaccoud], hand
M12.05 for Chronic postrheumatic arthropathy [Jaccoud], hip
M12.06 for Chronic postrheumatic arthropathy [Jaccoud], knee
M12.07 for Chronic postrheumatic arthropathy [Jaccoud], ankle and foot
Use M12.08 for Chronic postrheumatic arthropathy [Jaccoud], other specified site
Use M12.09 for Chronic postrheumatic arthropathy [Jaccoud], multiple sites
M12.1 for Kaschin-Beck disease
Use M12.10 for Kaschin-Beck disease, unspecified site
M12.11 for Kaschin-Beck disease, shoulder
M12.12 for Kaschin-Beck disease, elbow
M12.13 for Kaschin-Beck disease, wrist
M12.14 for Kaschin-Beck disease, hand
M12.15 for Kaschin-Beck disease, hip
M12.16 for Kaschin-Beck disease, knee
M12.17 for Kaschin-Beck disease, ankle and foot
Use M12.18 for Kaschin-Beck disease, vertebrae
Use M12.19 for Kaschin-Beck disease, multiple sites
M12.2 for Villonodular synovitis (pigmented)
Use M12.20 for Villonodular synovitis (pigmented), unspecified site
M12.21 for Villonodular synovitis (pigmented), shoulder
M12.22 for Villonodular synovitis (pigmented), elbow
M12.23 for Villonodular synovitis (pigmented), wrist
M12.24 for Villonodular synovitis (pigmented), hand
M12.25 for Villonodular synovitis (pigmented), hip
M12.26 for Villonodular synovitis (pigmented), knee
M12.27 for Villonodular synovitis (pigmented), ankle and foot
Use M12.28 for Villonodular synovitis (pigmented), other specified site
Use M12.29 for Villonodular synovitis (pigmented), multiple sites
M12.3 for Palindromic rheumatism
Use M12.30 for Palindromic rheumatism, unspecified site
M12.31 for Palindromic rheumatism, shoulder
M12.32 for Palindromic rheumatism, elbow
M12.33 for Palindromic rheumatism, wrist
M12.34 for Palindromic rheumatism, hand
M12.35 for Palindromic rheumatism, hip
M12.36 for Palindromic rheumatism, knee
M12.37 for Palindromic rheumatism, ankle and foot
Use M12.38 for Palindromic rheumatism, other specified site
Use M12.39 for Palindromic rheumatism, multiple sites
M12.4 for Intermittent hydrarthrosis
Use M12.40 for Intermittent hydrarthrosis, unspecified site
M12.41 for Intermittent hydrarthrosis, shoulder
M12.42 for Intermittent hydrarthrosis, elbow
M12.43 for Intermittent hydrarthrosis, wrist
M12.44 for Intermittent hydrarthrosis, hand
M12.45 for Intermittent hydrarthrosis, hip
M12.46 for Intermittent hydrarthrosis, knee
M12.47 for Intermittent hydrarthrosis, ankle and foot
Use M12.48 for Intermittent hydrarthrosis, other site
Use M12.49 for Intermittent hydrarthrosis, multiple sites
M12.5 for Traumatic arthropathy
Use M12.50 for Traumatic arthropathy, unspecified site
M12.51 for Traumatic arthropathy, shoulder
M12.52 for Traumatic arthropathy, elbow
M12.53 for Traumatic arthropathy, wrist
M12.54 for Traumatic arthropathy, hand
M12.55 for Traumatic arthropathy, hip
M12.56 for Traumatic arthropathy, knee
M12.57 for Traumatic arthropathy, ankle and foot
Use M12.58 for Traumatic arthropathy, other specified site
Use M12.59 for Traumatic arthropathy, multiple sites
M12.8 for Other specific arthropathies, not elsewhere classified
Use M12.80 for Other specific arthropathies, not elsewhere classified, unspecified site
M12.81 for Other specific arthropathies, not elsewhere classified, shoulder
M12.82 for Other specific arthropathies, not elsewhere classified, elbow
M12.83 for Other specific arthropathies, not elsewhere classified, wrist
M12.84 for Other specific arthropathies, not elsewhere classified, hand
M12.85 for Other specific arthropathies, not elsewhere classified, hip
M12.86 for Other specific arthropathies, not elsewhere classified, knee
M12.87 for Other specific arthropathies, not elsewhere classified, ankle and foot
Use M12.88 for Other specific arthropathies, not elsewhere classified, other specified site
Use M12.89 for Other specific arthropathies, not elsewhere classified, multiple sites
Use M12.9 for Arthropathy, unspecified
- Code Information
- Specific Coding
- Tabular List of Diseases and Injuries
- Patient Education
- Other Codes Used Similar Conditions
- Code History
- Diseases of the musculoskeletal system and connective tissue
M00–M99
Arthritis
What is arthritis?
If you feel pain and stiffness in your body or have trouble moving around, you might have arthritis. Any disorder that affects the joints is often called arthritis. Joints are places where two bones meet, such as your elbow or knee.
Most types of arthritis can cause joint pain and inflammation (swelling). Over time, a swollen joint can become severely damaged. Some kinds of arthritis can also cause problems in your organs, such as your eyes or skin. Treatment will depend on the type of arthritis you have.
What are the types of arthritis?
Common types of arthritis include:
- Osteoarthritis is the most common type of arthritis. It's often related to aging or injury.
- Autoimmune arthritis happens when your body's immune system attacks healthy cells in your body by mistake. Rheumatoid arthritis is the most common form of this type of arthritis.
- Juvenile arthritis is a type of arthritis that happens in children.
- Infectious arthritis is an infection that has spread from another part of your body to the joint. Reactive arthritis is one type.
- Psoriatic arthritis affects people with psoriasis (itchy or sore scaly red and white skin patches).
- Gout is a painful type of arthritis that happens when too much uric acid builds up in your body. It often starts in the big toe. Other joints can also be affected.
- Ankylosing spondylitis is a type of arthritis of the spine that can cause stiffness and make it difficult to move and bend.
What are the symptoms of arthritis?
Pain, redness, warmth, and joint inflammation are common arthritis symptoms. You may not be able to move your joint as well as it should. Other symptoms could include fever, weight loss, breathing difficulties, or a rash.
Symptoms often get worse as you age. Some symptoms of arthritis may be signs of other illnesses.
Who is more likely to get arthritis?
A few things that might increase your chance of getting arthritis include:
- Family history. You may be more likely to get certain types of arthritis if a member of your family has the disorder.
- Age. The risk of getting many types of arthritis increases with age.
- Sex. Certain types of arthritis are more common in women, while other types are more common in men.
Other factors that might increase your risk of getting arthritis include having a previous joint injury, obesity, or lupus.
How is arthritis diagnosed?
To find out if you have arthritis, your health care provider may:
- Ask you about your medical history, including your symptoms.
- Do a physical exam.
- Order blood tests or take x-rays.
Your provider may refer you to a rheumatologist (a doctor who specializes in arthritis care) for tests, diagnosis, and care.
What are the treatments for arthritis?
Treatment depends on the type of arthritis you have. It may include medicine or surgery. Your provider will work with you to improve your symptoms and quality of life.
A few ways to help manage your symptoms include:
- Hot or cold packs
- Relaxation techniques
- Use of splints, braces, and/or assistive devices
NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases
FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
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.