2026 ICD-10-CM Diagnosis Code M16Osteoarthritis of hip

ICD-10-CM Codes›M00–M99›M15-M19›M16

ICD-10-CM M16
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

M16 is a non-billable ICD-10-CM category code for osteoarthritis of hip, so it cannot be submitted on claims. Use a more specific code from this category instead, such as M16.0, M16.10, M16.11, and M16.12.

Code Identity

ICD-10-CM Code
M16
Billable Status
No — Non-Billable Category
Code Describes
Osteoarthritis of hip
Chapter
M15-M19
Osteoarthritis

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM15-M19Osteoarthritis
CategoryM16Osteoarthritis of hip
This CodeM16Osteoarthritis of hip

Specific Coding for Osteoarthritis of hipOverview

Non-specific codes like M16 require more characters. Use one of these billable codes instead:

  • Use M16.0 for Bilateral primary osteoarthritis of hip

  • M16.1 for Unilateral primary osteoarthritis of hip

  • Use M16.10 for Unilateral primary osteoarthritis, unspecified hip

  • Use M16.11 for Unilateral primary osteoarthritis, right hip

  • Use M16.12 for Unilateral primary osteoarthritis, left hip

  • Use M16.2 for Bilateral osteoarthritis resulting from hip dysplasia

  • M16.3 for Unilateral osteoarthritis resulting from hip dysplasia

  • Use M16.30 for Unilateral osteoarthritis resulting from hip dysplasia, unspecified hip

  • Use M16.31 for Unilateral osteoarthritis resulting from hip dysplasia, right hip

  • Use M16.32 for Unilateral osteoarthritis resulting from hip dysplasia, left hip

  • Use M16.4 for Bilateral post-traumatic osteoarthritis of hip

  • M16.5 for Unilateral post-traumatic osteoarthritis of hip

  • Use M16.50 for Unilateral post-traumatic osteoarthritis, unspecified hip

  • Use M16.51 for Unilateral post-traumatic osteoarthritis, right hip

  • Use M16.52 for Unilateral post-traumatic osteoarthritis, left hip

  • Use M16.6 for Other bilateral secondary osteoarthritis of hip

  • Use M16.7 for Other unilateral secondary osteoarthritis of hip

  • Use M16.9 for Osteoarthritis of hip, unspecified

Patient EducationClinical

Osteoarthritis

Osteoarthritis, sometimes called OA, is a type of arthritis that only affects the joints, usually in the hands, knees, hips, neck, and lower back. It's the most common type of arthritis.

The full article covers:

  • What is osteoarthritis?
  • What are the symptoms of osteoarthritis?
  • What causes osteoarthritis?
  • Who is more likely to develop osteoarthritis?
  • How is osteoarthritis diagnosed?
  • What are the treatments for osteoarthritis?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About M16Overview

Is M16 (Osteoarthritis of hip) a billable code?

No. This is a category header that groups the codes for osteoarthritis of hip, and headers cannot be submitted on claims. Claims for osteoarthritis of hip need a more specific code from this category, such as M16.0, M16.10, and M16.11.