ICD-10 Code M02.212 – Postimmunization arthropathy, left shoulder (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code M02.212 – Postimmunization arthropathy, left shoulder
What it is
M02.212 identifies joint inflammation in the left shoulder that occurs after immunization. Use it when the record links the arthropathy to a vaccine reaction and specifies the left shoulder.
Clinical signs
Typical findings include shoulder pain, stiffness, swelling, and reduced range of motion after vaccination. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents postimmunization arthropathy affecting the left shoulder. It fits cases where the shoulder symptoms are attributed to a vaccine-related joint reaction, not a routine injection-site soreness.
Confirm laterality and the causal link in the chart before assigning the code. If the note only says shoulder pain after an injection, check documentation for whether arthropathy is actually diagnosed.
Do not use for
Do not use this code for nonspecific post-injection pain, local arm soreness, or shoulder symptoms without documented arthropathy. Check documentation if the condition is better described by another diagnosis.
Coding tip
Verify the vaccine association and left-side laterality in the provider note before coding.