---
title: "ICD-10-CM M17.10: Unilateral primary osteoarthritis… | BillingBrief"
description: "ICD-10-CM code M17.10: Unilateral primary osteoarthritis, unspecified knee. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/m17.10/"
language: "en"
---

# M17.10 Unilateral primary osteoarthritis, unspecified knee

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Unilateral primary osteoarthritis, unspecified knee

## Related codes

-   [`M17.0` Bilateral primary osteoarthritis of knee ICD-10-CM](https://billingbrief.com/icd10/m17.0/)
-   [`M17.11` Unilateral primary osteoarthritis, right knee ICD-10-CM](https://billingbrief.com/icd10/m17.11/)
-   [`M17.12` Unilateral primary osteoarthritis, left knee ICD-10-CM](https://billingbrief.com/icd10/m17.12/)
-   [`M17.2` Bilateral post-traumatic osteoarthritis of knee ICD-10-CM](https://billingbrief.com/icd10/m17.2/)
-   [`M17.30` Unilateral post-traumatic osteoarthritis, unspecified knee ICD-10-CM](https://billingbrief.com/icd10/m17.30/)
-   [`M17.31` Unilateral post-traumatic osteoarthritis, right knee ICD-10-CM](https://billingbrief.com/icd10/m17.31/)
-   [`M17.32` Unilateral post-traumatic osteoarthritis, left knee ICD-10-CM](https://billingbrief.com/icd10/m17.32/)
-   [`M17.4` Other bilateral secondary osteoarthritis of knee ICD-10-CM](https://billingbrief.com/icd10/m17.4/)

## Common questions

### Is M17.10 a billable code?

Yes. M17.10 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

M17 Osteoarthritis of knee

Chapter

Diseases of the musculoskeletal system and connective tissue

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).