ICD-10 Code M02.16 – Postdysenteric arthropathy, knee (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.16 – Postdysenteric arthropathy, knee
What it is
M02.16 identifies postdysenteric arthropathy affecting the knee. Use it for a joint problem that develops after a dysenteric infection and is documented as involving the knee.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include knee pain, swelling, stiffness, and reduced range of motion following a recent or prior enteric infection.
When to use this code
Use this code when the record clearly links the knee arthritis to a prior dysenteric illness. You should also use it when the provider documents reactive or postinfectious arthropathy specifically in the knee. Check documentation if the infection type or joint is not explicit.
Do not use for
Do not use this code for nonspecific knee pain, osteoarthritis, or arthritis without a documented postdysenteric cause. Do not assign it when the affected joint or infectious trigger is not confirmed.
Coding tip
Confirm both the postdysenteric etiology and the knee site in the provider note before coding.