What is the ICD-10 code for AC joint arthritis?

The ICD-10 code for primary osteoarthritis of the AC joint is M19.011 for the right shoulder and M19.012 for the left shoulder.

How is AC joint arthritis documented?

AC joint arthritis documentation should include laterality, type (primary or secondary), and imaging confirmation of osteophytes and joint space narrowing.

ICD-10 Coding for Acromioclavicular Joint Arthritis(M19.011, M05.4, M05.411)

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Learn about ICD-10 coding for AC joint arthritis, including primary and secondary osteoarthritis codes, documentation requirements, and common pitfalls.

Also known as:

AC Joint ArthritisShoulder Osteoarthritis

Related ICD-10 Code Ranges

Complete code families applicable to Acromioclavicular Joint Arthritis

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
M19.011	Primary osteoarthritis, right shoulder	Use when primary osteoarthritis is diagnosed in the right AC joint with imaging confirmation.	X-ray showing osteophytes and joint space narrowing Clinical documentation of chronic shoulder pain
M19.012	Primary osteoarthritis, left shoulder	Use when primary osteoarthritis is diagnosed in the left AC joint with imaging confirmation.	X-ray showing osteophytes and joint space narrowing Clinical documentation of chronic shoulder pain
M19.211	Secondary osteoarthritis, right shoulder	Use for secondary osteoarthritis in the right AC joint due to previous trauma.	History of trauma or previous injury Imaging showing degenerative changes

Primary ICD-10-CM Codes

Primary osteoarthritis, right shoulder

M19.011Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Rheumatoid arthritis with involvement of right shoulderM05.411

Rheumatoid arthritis with involvement of left shoulderM05.412

Primary osteoarthritis, right shoulderM19.011

Documentation & Coding Risks

Avoid these common issues when documenting Acromioclavicular Joint Arthritis.

Failing to document laterality

Impact

Clinical: Inaccurate treatment planning, Regulatory: Non-compliance with coding standards, Financial: Potential for denied claims

Mitigation

Always include laterality in documentation, Use templates to ensure completeness

Using unspecified codes when specific codes are available

Impact

Reimbursement: May lead to lower reimbursement rates, Compliance: Non-compliance with coding guidelines, Data Quality: Decreased accuracy in health records

Mitigation

Ensure documentation specifies laterality and type of osteoarthritis

Unspecified coding

Impact

Using unspecified codes when specific ones are available

Mitigation

Ensure documentation supports specific code selection

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with M19.011.

Primary Code

M19.011

Primary osteoarthritis, right shoulder

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ICD-10 codes12

Coding risks3

FAQs2

ICD-10 Coding for Acromioclavicular Joint Arthritis(M19.011, M05.4, M05.411)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for AC joint arthritis?

How is AC joint arthritis documented?

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