ICD-10 Code M02.162 – Postdysenteric arthropathy, left knee (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.162 – Postdysenteric arthropathy, left knee
What it is
This code identifies reactive joint inflammation affecting the left knee after a dysenteric infection. It indicates a postinfectious arthropathy rather than a primary knee disease.
Clinical signs
Typical findings include knee pain, swelling, stiffness, and reduced range of motion after a recent intestinal infection. Clinical features vary; refer to documentation.
When to use this code
Use M02.162 when the record clearly links left knee arthropathy to a prior dysentery or enteric infection. It fits documented postinfectious joint involvement, especially when the provider names the knee and the dysenteric cause. Check documentation if the infection history is unclear.
Do not use for
Do not use this code for nonspecific knee pain, degenerative arthritis, or septic arthritis without postdysenteric attribution. Also avoid it if the affected joint or infectious trigger is not documented.
Coding tip
Verify both the left-knee laterality and the postdysenteric cause in the provider note before assigning M02.162.