2021 ICD-10-CM Diagnosis Code M19.9

Osteoarthritis, unspecified site

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • M19.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM M19.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M19.9 - other international versions of ICD-10 M19.9 may differ.
The following code(s) above M19.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M19.9:
  • M00-M99
    2021 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • arthropathic psoriasis (L40.5-)
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • compartment syndrome (traumatic) (T79.A-)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the musculoskeletal system and connective tissue
  • M15-M19
    2021 ICD-10-CM Range M15-M19

    Osteoarthritis

    Type 2 Excludes
    • osteoarthritis of spine (M47.-)
    Osteoarthritis
  • M19
    ICD-10-CM Diagnosis Code M19

    Other and unspecified osteoarthritis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    • arthrosis of spine (M47.-)
    • hallux rigidus (M20.2)
    • osteoarthritis of spine (M47.-)
    Other and unspecified osteoarthritis
Clinical Information
  • A joint is where two or more bones come together, like the knee, hip, elbow or shoulder. Joints can be damaged by many types of injuries or diseases. arthritis or simply years of use may cause a joint to wear away. This can cause pain, stiffness and swelling. Over time, a swollen joint can become severely damaged. Treatment of joint problems depends on the cause. If you have a sports injury, treatment often begins with the rice (rest, ice, compression and elevation) method to relieve pain, reduce swelling and speed healing. Other possible treatments include pain relievers, keeping the injured area from moving, rehabilitation, and sometimes surgery. For arthritis, injuries, or other diseases, you may need joint replacement surgery to remove the damaged joint and put in a new one. nih: national institute of arthritis and musculoskeletal and skin diseases
  • A noninflammatory degenerative joint disease occurring chiefly in older persons, characterised by degeneration of the articular cartilage, hypertrophy of bone at the margins and changes in the synovial membrane. It is accompanied by pain and stiffness, particularly after prolonged activity. (on-line medical dictionary)
  • A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans.
  • Any disease of the joints.
  • Any disorder of the joints.
  • Condition in which there is a deviation from or interruption of the normal structure or function of the joints.
  • Noninflammatory degenerative joint disease occurring chiefly in older persons, characterized by degeneration of the articular cartilage, hypertrophy of bone at the margins, and changes in the synovial membrane, accompanied by pain and stiffness.
  • 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
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To M19.9
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
M19.29 Secondary osteoarthritis, other specified site
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
M20 Acquired deformities of fingers and toes
M20.0 Deformity of finger(s)
M20.00 Unspecified deformity of finger(s)
M20.001 Unspecified deformity of right finger(s)
M20.002 Unspecified deformity of left finger(s)
M20.009 Unspecified deformity of unspecified finger(s)

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.