ICD-10 Code M06.019 – Rheumatoid arthritis without rheumatoid factor, unspecified shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M06.019 – Rheumatoid arthritis without rheumatoid factor, unspecified shoulder
What it is
This code identifies rheumatoid arthritis affecting the shoulder without a documented rheumatoid factor. Use it when the record specifies the shoulder but does not name the right or left side.
Clinical signs
Typical findings include chronic inflammatory joint pain, stiffness, swelling, and reduced shoulder motion. Clinical features vary; refer to documentation for side, chronicity, and whether rheumatoid factor is absent.
When to use this code
Use M06.019 when the clinician documents rheumatoid arthritis of the shoulder and notes it is seronegative or without rheumatoid factor, but laterality is not stated. It also fits when the shoulder is the only joint location documented and the record remains unspecified.
Do not use for
Do not use this code if rheumatoid factor is documented as positive, or if the note identifies a right or left shoulder and a more specific code is available. Check documentation.
Coding tip
Before assigning M06.019, confirm both the “without rheumatoid factor” wording and the absence of laterality in the provider note.