What does ICD-10 code M16 mean?

ICD-10 code M16 is the standardized code used for osteoarthritis of hip in medical records and coding systems.

When is ICD-10 code M16 used?

Doctors, hospitals, and insurers may use ICD-10 code M16 when recording osteoarthritis of hip in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code M16 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code M16: Osteoarthritis of hip

Name: ICD-10 Code M16: Osteoarthritis of hip
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:20:24.852Z

M16 is an ICD-10 diagnosis entry used to group records related to Osteoarthritis of hip. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the musculoskeletal system and connective tissue (M00-M99).

When is it used?

May be used when a clinician documents osteoarthritis of hip in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

13Diseases of the musculoskeletal system and connective tissue (M00-M99)

block

M00-M25Arthropathies

block

M15-M19Osteoarthritis

currentM15-M19

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

Orthopedic SpecialistRheumatologist

Sibling codes

M15Polyosteoarthritis M17Osteoarthritis of knee M18Osteoarthritis of first carpometacarpal joint M19Other and unspecified osteoarthritis

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

M16

Replacement codes

M16.0 — Bilateral primary osteoarthritis of hipM16.2 — Bilateral osteoarthritis resulting from hip dysplasiaM16.4 — Bilateral post-traumatic osteoarthritis of hipM16.6 — Other bilateral secondary osteoarthritis of hipM16.7 — Other unilateral secondary osteoarthritis of hipM16.9 — Osteoarthritis of hip, unspecified

Common synonyms

Osteoarthritis of hip

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.