ICD-10 Code M01.X3 – Direct infection of wrist in infectious and parasitic diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M01.X3 – Direct infection of wrist in infectious and parasitic diseases classified elsewhere
What it is
This code identifies a direct infectious process involving the wrist that occurs as part of another infectious or parasitic disease. Use it when the wrist infection is documented as secondary to, or classified under, an underlying condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see wrist pain, swelling, warmth, limited motion, and signs of local inflammation or infection tied to the underlying disease.
When to use this code
Use this code when the record clearly states direct infection of the wrist and links it to an infectious or parasitic disease classified elsewhere. It is appropriate when the wrist is the documented site and the cause is not coded as a primary joint disorder. Check documentation for the underlying infection and site specificity.
Do not use for
Do not use this code for traumatic wrist injuries, nonspecific joint pain, or infections not documented as direct infection of the wrist. If the chart does not link the wrist infection to another infectious or parasitic disease, check documentation.
Coding tip
Always code the underlying infectious or parasitic condition first when documentation supports it.