ICD-10 Code M02.17 – Postdysenteric arthropathy, ankle and foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.17 – Postdysenteric arthropathy, ankle and foot
What it is
This code identifies reactive joint inflammation in the ankle and foot that follows a dysenteric infection. Use it when the record links the arthropathy to a prior intestinal infection, not to trauma or primary arthritis.
Clinical signs
Typical findings include pain, swelling, stiffness, and reduced motion in the ankle or foot joints. Clinical features vary; refer to documentation for the documented infectious trigger and the affected joint site.
When to use this code
Use M02.17 when the clinician documents postdysenteric arthropathy involving the ankle and foot. It is appropriate when the chart shows a temporal relationship to dysentery or another enteric infection and specifies this joint location. Check documentation if the infection source or joint site is unclear.
Do not use for
Do not use this code for traumatic ankle or foot pain, gout, or nonspecific arthritis without a documented postdysenteric cause. If the arthropathy is linked to another infection type, check documentation for the correct reactive arthropathy code.
Coding tip
Confirm both the postdysenteric cause and the ankle-foot site before assigning M02.17.