ICD-10 Code M02.819 – Other reactive arthropathies, unspecified shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.819 – Other reactive arthropathies, unspecified shoulder
What it is
M02.819 identifies a reactive arthropathy affecting the shoulder when the side is not specified. It is used for joint inflammation that follows an infection or other trigger, but the shoulder laterality is not documented.
Clinical signs
Typical findings include shoulder pain, swelling, stiffness, and reduced range of motion. Clinical features vary; refer to documentation for evidence of a post-infectious or reactive pattern.
When to use this code
Use this code when the provider documents reactive arthropathy in the shoulder and does not specify left or right. It also fits cases where the shoulder is clearly involved, but laterality is unavailable in the record. Code the documented underlying condition separately when instructed.
Do not use for
Do not use this code for traumatic shoulder pain, osteoarthritis, septic arthritis, or unspecified joint pain without a reactive arthropathy diagnosis. Check documentation if the cause is unclear.
Coding tip
Verify both the reactive arthropathy diagnosis and the unspecified shoulder laterality before assigning M02.819.