ICD-10-CM Diagnosis Code M12.39 - Palindromic rheumatism, multiple sites (original) (raw)

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ICD List 2025-2026 Edition

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Palindromic rheumatism, multiple sites

ICD-10-CM Code:

M12.39

ICD-10 Code for:

Palindromic rheumatism, multiple sites

Is Billable?

Yes - Valid for Submission

Chronic Condition Indicator: [1]

Chronic

Code Navigator:

M12.39 is a billable diagnosis code used to specify a medical diagnosis of palindromic rheumatism, multiple sites. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.

  1. Code Information
  2. Approximate Synonyms
  3. Clinical Classification
  4. Clinical Information
  5. Tabular List of Diseases and Injuries
  6. Index to Diseases and Injuries References
  8. Diagnostic Related Groups Mapping
  9. Convert to ICD-9 Code
  10. Patient Education
  11. Other Codes Used Similar Conditions
  12. Code History

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

CCSR Code: MUS007

Inpatient Default: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.

Outpatient Default: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

a condition characterized by flares of arthritis with remission in between episodes. single or multiple joints may be affected as well as the periarticular soft tissues.

References found for this diagnosis code in the External Cause of Injuries Index:

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

ICD-9-CM: 719.39

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

Rheumatoid Arthritis

What is rheumatoid arthritis?

Rheumatoid arthritis (RA) is a form of arthritis that causes pain, swelling, and stiffness in your joints. RA is an autoimmune disease. Although it is most common in the wrist and fingers, this disease can cause your immune system to attack any joint tissue. The inflammation (swelling) that comes with RA can also affect other body parts. Inflammation could cause medical issues in your eyes, skin, heart, nerves, blood, or lungs.

RA differs from osteoarthritis, a common arthritis that often comes with age. RA affects the lining of your joints and damages the tissue that covers the ends of the bones in a joint. Eventually, this might cause your joints to not work as well.

There is no cure for RA, but early treatment can help you manage symptoms, reduce joint damage, and lead a productive life.

Who is more likely to get rheumatoid arthritis?

Rheumatoid arthritis can happen at any age, but your risk increases as you become an older adult. Your chance of developing RA can also increase if:

What causes rheumatoid arthritis?

No one knows what causes rheumatoid arthritis. A few things that might play a part in getting RA include:

What are the symptoms of rheumatoid arthritis?

Your immune system may start turning against your body's joints and tissues years before you notice any symptoms of RA. The changes from this type of immune malfunction usually settle in your joints.

RA affects people differently. You might have the disease for only a short time, or your symptoms might come and go. The severe form can be chronic (long-lasting) and may last a lifetime.

Symptoms of rheumatoid arthritis may include:

How is rheumatoid arthritis diagnosed?

There's no single test for rheumatoid arthritis. The disease develops over time. At first, you may only have a few symptoms, making it hard to diagnose RA in its early stages. To find out if you have RA, your health care provider may:

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 rheumatoid arthritis?

There is no cure for RA, but early treatment can help prevent your symptoms from getting worse and damaging your joints. Treatment can include medicine, lifestyle changes, and surgery. These may slow or stop joint damage and reduce pain and swelling.

Your provider may use a combination of treatments. Your treatment may change based on your symptoms.

You can help manage your RA symptoms if you:

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

[Learn More in MedlinePlus]