M63.21: Myositis in other infectious diseases classified elsewhere Shoulder region

You have a muscle inflammation in your shoulder area.

Pathogens have caused your muscle inflammation.

When you move inflamed muscles, or press on them, it can be painful. Inflamed muscles can also harden. It may become impossible to move the inflamed muscles properly. If the muscles remain inflamed for a long time, they may also get weaker or cramp up.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information


This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.


Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).