ICD-10 Diagnosis Code M16.1

Unilateral primary osteoarthritis of hip

Diagnosis Code M16.1

ICD-10: M16.1
Short Description: Unilateral primary osteoarthritis of hip
Long Description: Unilateral primary osteoarthritis of hip
This is the 2019 version of the ICD-10-CM diagnosis code M16.1

Not Valid for Submission
The code M16.1 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Osteoarthritis (M15-M19)
      • Osteoarthritis of hip (M16)

Information for Medical Professionals

Information for Patients


Also called: Degenerative joint disease, OA, Osteoarthrosis

Osteoarthritis is the most common form of arthritis. It causes pain, swelling, and reduced motion in your joints. It can occur in any joint, but usually it affects your hands, knees, hips or spine.

Osteoarthritis breaks down the cartilage in your joints. Cartilage is the slippery tissue that covers the ends of bones in a joint. Healthy cartilage absorbs the shock of movement. When you lose cartilage, your bones rub together. Over time, this rubbing can permanently damage the joint.

Risk factors for osteoarthritis include

  • Being overweight
  • Getting older
  • Injuring a joint

No single test can diagnose osteoarthritis. Most doctors use several methods, including medical history, a physical exam, x-rays, or lab tests.

Treatments include exercise, medicines, and sometimes surgery.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

  • Osteoarthritis (Medical Encyclopedia)

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