ICD-10-CM Code M19

Other and unspecified osteoarthritis

Version 2020 Non-Billable Code

Not Valid for Submission

M19 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of other and unspecified osteoarthritis. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

Short Description:Other and unspecified osteoarthritis
Long Description:Other and unspecified osteoarthritis

Consider the following ICD-10 codes with a higher level of specificity:

  • M19.0 - Primary osteoarthritis of other joints
  • M19.01 - Primary osteoarthritis, shoulder
  • M19.011 - Primary osteoarthritis, right shoulder
  • M19.012 - Primary osteoarthritis, left shoulder
  • M19.019 - Primary osteoarthritis, unspecified shoulder
  • M19.02 - Primary osteoarthritis, elbow
  • M19.021 - Primary osteoarthritis, right elbow
  • M19.022 - Primary osteoarthritis, left elbow
  • M19.029 - Primary osteoarthritis, unspecified elbow
  • M19.03 - Primary osteoarthritis, wrist
  • M19.031 - Primary osteoarthritis, right wrist
  • M19.032 - Primary osteoarthritis, left wrist
  • M19.039 - Primary osteoarthritis, unspecified wrist
  • M19.04 - Primary osteoarthritis, hand
  • M19.041 - Primary osteoarthritis, right hand
  • M19.042 - Primary osteoarthritis, left hand
  • M19.049 - Primary osteoarthritis, unspecified hand
  • M19.07 - Primary osteoarthritis ankle and foot
  • M19.071 - Primary osteoarthritis, right ankle and foot
  • M19.072 - Primary osteoarthritis, left ankle and foot
  • M19.079 - Primary osteoarthritis, unspecified ankle and foot
  • M19.1 - Post-traumatic osteoarthritis of other joints
  • M19.11 - Post-traumatic osteoarthritis, shoulder
  • M19.111 - Post-traumatic osteoarthritis, right shoulder
  • M19.112 - Post-traumatic osteoarthritis, left shoulder
  • M19.119 - Post-traumatic osteoarthritis, unspecified shoulder
  • M19.12 - Post-traumatic osteoarthritis, elbow
  • M19.121 - Post-traumatic osteoarthritis, right elbow
  • M19.122 - Post-traumatic osteoarthritis, left elbow
  • M19.129 - Post-traumatic osteoarthritis, unspecified elbow
  • M19.13 - Post-traumatic osteoarthritis, wrist
  • M19.131 - Post-traumatic osteoarthritis, right wrist
  • M19.132 - Post-traumatic osteoarthritis, left wrist
  • M19.139 - Post-traumatic osteoarthritis, unspecified wrist
  • M19.14 - Post-traumatic osteoarthritis, hand
  • M19.141 - Post-traumatic osteoarthritis, right hand
  • M19.142 - Post-traumatic osteoarthritis, left hand
  • M19.149 - Post-traumatic osteoarthritis, unspecified hand
  • M19.17 - Post-traumatic osteoarthritis, ankle and foot
  • M19.171 - Post-traumatic osteoarthritis, right ankle and foot
  • M19.172 - Post-traumatic osteoarthritis, left ankle and foot
  • M19.179 - Post-traumatic osteoarthritis, unspecified ankle and foot
  • M19.2 - Secondary osteoarthritis of other joints
  • M19.21 - Secondary osteoarthritis, shoulder
  • M19.211 - Secondary osteoarthritis, right shoulder
  • M19.212 - Secondary osteoarthritis, left shoulder
  • M19.219 - Secondary osteoarthritis, unspecified shoulder
  • M19.22 - Secondary osteoarthritis, elbow
  • M19.221 - Secondary osteoarthritis, right elbow
  • M19.222 - Secondary osteoarthritis, left elbow
  • M19.229 - Secondary osteoarthritis, unspecified elbow
  • M19.23 - Secondary osteoarthritis, wrist
  • M19.231 - Secondary osteoarthritis, right wrist
  • M19.232 - Secondary osteoarthritis, left wrist
  • M19.239 - Secondary osteoarthritis, unspecified wrist
  • M19.24 - Secondary osteoarthritis, hand
  • M19.241 - Secondary osteoarthritis, right hand
  • M19.242 - Secondary osteoarthritis, left hand
  • M19.249 - Secondary osteoarthritis, unspecified hand
  • M19.27 - Secondary osteoarthritis, ankle and foot
  • M19.271 - Secondary osteoarthritis, right ankle and foot
  • M19.272 - Secondary osteoarthritis, left ankle and foot
  • M19.279 - Secondary osteoarthritis, unspecified ankle and foot
  • M19.9 - Osteoarthritis, unspecified site
  • M19.90 - Unspecified osteoarthritis, unspecified site
  • M19.91 - Primary osteoarthritis, unspecified site
  • M19.92 - Post-traumatic osteoarthritis, unspecified site
  • M19.93 - Secondary osteoarthritis, unspecified site

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code M19:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • polyarthritis M15

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • arthrosis of spine M47
  • hallux rigidus M20.2
  • osteoarthritis of spine M47

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Osteoarthritis (M15-M19)
      • Other and unspecified osteoarthritis (M19)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


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

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