M22.1: Recurrent subluxation of patella
Your kneecap has slipped to one side.
The knee joint connects the thigh to the lower leg. The knee joint is made up of 3 bones. These bones are the thighbone (femur), the shinbone (tibia) and the kneecap. The kneecap sits in a groove at the front of the thighbone.
Your kneecap has slipped too far to one side in its groove in your femur. This can happen as a result of very normal movements not involving any excessive force. In certain circumstances this happens regularly. For example, when the muscles around the knee are too weak or when the kneecap is an unusual shape. If the kneecap has slipped too far to one side in the past it will get dislocated again more easily.
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
Note
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.
Source
Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).