ICD-10 Code M02.079 – Arthropathy following intestinal bypass, unspecified ankle and foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.079 – Arthropathy following intestinal bypass, unspecified ankle and foot
What it is
M02.079 identifies a reactive joint disorder that occurs after an intestinal bypass procedure and affects the ankle or foot without a laterality or more specific site documented. Use this code when the record links the arthropathy to prior bypass surgery.
Clinical signs
Typical findings include joint pain, swelling, stiffness, and reduced range of motion in the ankle or foot. Clinical features vary; refer to documentation for evidence of the post-bypass relationship and the affected joint.
When to use this code
Use M02.079 when the provider documents arthropathy following intestinal bypass and does not specify right or left ankle or foot. It is appropriate when the joint problem is described as a consequence of the bypass procedure. Check documentation if the cause is uncertain or another arthropathy type is stated.
Do not use for
Do not use this code for nonspecific foot pain, osteoarthritis, or gout without documentation of post-bypass arthropathy. If the ankle or foot side is known, choose the more specific code.
Coding tip
Confirm both the intestinal bypass history and the exact joint location before assigning M02.079.