M16.9 ICD-10-CM Code: Osteoarthritis of hip, unspecified

M16.9 is the billable ICD-10-CM code for “Osteoarthritis of hip, unspecified” in the FY 2027 U.S. code set, effective Oct 1, 2026.

Official description

M16.9

Osteoarthritis of hip, unspecified

ICD-10-CM diagnosis code · United States clinical modification

More specific than M16.9

M16.9 is an unspecified code, for when the note doesn’t say more. If it documents the type, cause, or site, one of these codes may fit better.

Where M16.9 sits

  1. 1

    Chapter 13

    Diseases of the musculoskeletal system and connective tissue (M00-M99)

  2. 2

    Section

    Osteoarthritis (M15-M19)

  3. 3

    Category M16

    Osteoarthritis of hip

  4. 4

    Code M16.9

    Osteoarthritis of hip, unspecified

Notes for this code

Inclusion terms

No inclusion terms are listed for M16.9.

Code first

No “code first” instruction is listed for M16.9.

Use additional code

No “use additional code” instruction is listed for M16.9.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for M16.9.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for M16.9.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code M16.9 mean?

M16.9 is the FY 2027 U.S. ICD-10-CM code for “Osteoarthritis of hip, unspecified.”

Is M16.9 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, M16.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is M16.9 located in ICD-10-CM?

M16.9 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Osteoarthritis (M15-M19) (M15–M19), under category M16, Osteoarthritis of hip.

What coding notes are listed for M16.9?

No inclusion terms are listed for M16.9 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.