M17
Non-Billable

Osteoarthritis of knee

Non-Billable / Non-Specific Code

What is Osteoarthritis of knee?

ICD-10-CM M17 is the diagnosis code for Osteoarthritis of knee. This code falls under the section "Osteoarthritis" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for M17

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where M17 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 7 entries
M17.0Bilateral primary osteoarthritis of kneeBillableM17.1Unilateral primary osteoarthritis of kneeNon-BillableM17.10Unilateral primary osteoarthritis, unspecified kneeBillableM17.11Unilateral primary osteoarthritis, right kneeBillableM17.12Unilateral primary osteoarthritis, left kneeBillableM17.2Bilateral post-traumatic osteoarthritis of kneeBillableM17.3Unilateral post-traumatic osteoarthritis of kneeNon-BillableM17.30Unilateral post-traumatic osteoarthritis, unspecified kneeBillableM17.31Unilateral post-traumatic osteoarthritis, right kneeBillableM17.32Unilateral post-traumatic osteoarthritis, left kneeBillableM17.4Other bilateral secondary osteoarthritis of kneeBillableM17.5Other unilateral secondary osteoarthritis of kneeBillableM17.9Osteoarthritis of knee, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is M17 a billable ICD-10-CM code?

No, M17 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does M17 mean?

M17 is the ICD-10-CM diagnosis code for "Osteoarthritis of knee". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is M17 in?

M17 is located in Section M15-M19 — "Osteoarthritis" within Chapter 13 of the ICD-10-CM Tabular List.

What are the sub-codes of M17?

M17 has 7 sub-code(s) that provide more specific detail: M17.0, M17.1, M17.2, M17.3, M17.4 and more.

When should I use M17?

Use M17 when the patients documented diagnosis matches "Osteoarthritis of knee" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Osteoarthritis of knee?

The ICD-10-CM code for Osteoarthritis of knee is M17.

Can M17 be used for primary diagnosis?

No, M17 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is M17 in?

M17 is in Chapter 13 of the ICD-10-CM Tabular List.

Is M17 valid for 2026?

Yes, M17 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM16.9Osteoarthritis of hip, unspecifiedNext →M17.0Bilateral primary osteoarthritis of knee
Code Details
M17
Osteoarthritis of knee
Non-Billable / Non-Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M15-M19 — Osteoarthritis
2026 ICD-10-CM