How do you code osteoarthritis in multiple sites?

For osteoarthritis affecting multiple sites, use M15.0 if three or more joints are involved. Ensure documentation specifies the joints affected.

What is the ICD-10 code for arthritis in multiple joints?

The ICD-10 code for arthritis in multiple joints is M13.89 for unspecified types and M15.0 for generalized osteoarthritis.

ICD-10 Coding for Arthritis Multiple Sites(M15.0, M05.79, M13.89)

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Learn about ICD-10 coding for arthritis affecting multiple sites, including osteoarthritis and rheumatoid arthritis. Find documentation requirements and coding tips.

Also known as:

PolyarthritisGeneralized OsteoarthritisMultiple Joint Arthritis

Related ICD-10 Code Ranges

Complete code families applicable to Arthritis Multiple Sites

M00-M99Primary Range

Diseases of the musculoskeletal system and connective tissue

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
M15.0	Primary generalized (osteo)arthritis	Use when osteoarthritis affects three or more joints without a dominant joint.	X-ray showing osteophytes/joint space narrowing in ≥3 joints
M13.89	Other specified arthritis, multiple sites	Use for non-OA inflammatory arthritis affecting two or more joints.	Clinical documentation of arthritis in multiple sites without specific type.

Primary ICD-10-CM Codes

Primary generalized (osteo)arthritis

M15.0Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Unspecified osteoarthritis, unspecified siteM19.90

Rheumatoid arthritis with rheumatoid factor, multiple sitesM05.79

Documentation & Coding Risks

Avoid these common issues when documenting Arthritis Multiple Sites.

Vague documentation of arthritis

Impact

Clinical: May lead to inappropriate treatment plans., Regulatory: Increases risk of non-compliance with coding standards., Financial: Potential for denied claims or reduced reimbursement.

Mitigation

Use specific terms like 'osteoarthritis' or 'rheumatoid arthritis'., Document all affected joints.

Using unspecified codes for documented multiple sites

Impact

Reimbursement: May lead to lower reimbursement rates., Compliance: Increases risk of audit issues., Data Quality: Reduces accuracy of clinical data.

Mitigation

Use specific codes like M15.0 or M13.89 when documentation supports it.

Use of unspecified codes

Impact

Frequent use of unspecified codes for arthritis can trigger audits.

Mitigation

Ensure documentation supports the use of specific codes.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with M15.0.

Primary Code

M15.0

Primary generalized (osteo)arthritis

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ICD-10 codes5

Coding risks3

FAQs2

ICD-10 Coding for Arthritis Multiple Sites(M15.0, M05.79, M13.89)

Documentation & Coding Risks

Frequently Asked Questions

How do you code osteoarthritis in multiple sites?

What is the ICD-10 code for arthritis in multiple joints?

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