ICD-10 Code M02.112 – Postdysenteric arthropathy, left shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.112 – Postdysenteric arthropathy, left shoulder
What it is
M02.112 identifies reactive joint inflammation in the left shoulder that follows a dysenteric infection. Use it when the record links the shoulder arthropathy to a prior intestinal infection, not to trauma or primary arthritis.
Clinical signs
Typical findings include shoulder pain, stiffness, swelling, and reduced range of motion. Clinical features vary; refer to documentation for the infectious history and the provider’s diagnosis of postdysenteric arthropathy.
When to use this code
Use this code when the clinician documents postdysenteric arthropathy affecting the left shoulder, or clearly states a reactive arthropathy after dysentery with left-shoulder involvement. It is appropriate when the laterality is specified and the condition is not described more generally. If the note does not connect the arthritis to dysentery, check documentation.
Do not use for
Do not use it for unspecified shoulder pain, traumatic joint injury, or other inflammatory arthropathies without a dysenteric cause. Do not assign it if the record only mentions a history of infection without a current provider diagnosis.
Coding tip
Verify both the postinfectious etiology and left-shoulder laterality before coding.