ICD-10 Code M02.2 – Postimmunization arthropathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.2 – Postimmunization arthropathy
What it is
M02.2 identifies arthritis or joint symptoms that occur after immunization. Use it when the record links the arthropathy to a vaccine rather than to infection, trauma, or another cause.
Clinical signs
Clinical features vary; refer to documentation. Records may note joint pain, swelling, stiffness, or limited motion after vaccination, with the provider describing a postimmunization relationship.
When to use this code
Use M02.2 when the clinician documents arthropathy as a consequence of a recent immunization. The note should support a causal or temporal link, not just a history of vaccination. If the chart only mentions nonspecific joint pain after a shot, check documentation before coding.
Do not use for
Do not use this code for unrelated arthritis, vaccine administration, or routine post-vaccination soreness without arthropathy. If the condition is better explained by infection or another diagnosis, code that condition instead.
Coding tip
Confirm the provider explicitly connects the joint disorder to immunization before assigning M02.2.