What ICD-10 Codes Are Used for Left Knee Osteoarthritis?
Osteoarthritis, specifically when it affects the left knee, can significantly decrease a person's mobility and quality of life. Here are the left knee osteoarthritis ICD codes often used for this condition:
- M17.12 - Unilateral primary osteoarthritis, left knee: Use this code for primary osteoarthritis affecting only the left knee.
- M17.32 - Unilateral post-traumatic osteoarthritis, left knee: This code is used when osteoarthritis of the left knee has developed due to an injury or trauma.
- M17.4 - Other bilateral secondary osteoarthritis of knee: If osteoarthritis affects both knees and is secondary to another condition or cause, use this code.

