Other and unspecified osteoarthritis (M19)

Browse all the diagnosis codes used for other and unspecified osteoarthritis (m19). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Arthritis - Acute or chronic inflammation of JOINTS.

Arthritis, Experimental - ARTHRITIS that is induced in experimental animals. Immunological methods and infectious agents can be used to develop experimental arthritis models. These methods include injections of stimulators of the immune response, such as an adjuvant (ADJUVANTS, IMMUNOLOGIC) or COLLAGEN.

Arthritis, Gouty - Arthritis, especially of the great toe, as a result of gout. Acute gouty arthritis often is precipitated by trauma, infection, surgery, etc. The initial attacks are usually monoarticular but later attacks are often polyarticular. Acute and chronic gouty arthritis are associated with accumulation of MONOSODIUM URATE in and around affected joints.

Arthritis, Infectious - Arthritis caused by BACTERIA; RICKETTSIA; MYCOPLASMA; VIRUSES; FUNGI; or PARASITES.

Arthritis, Juvenile - Arthritis in children, with onset before 16 years of age. The terms juvenile rheumatoid arthritis (JRA) and juvenile idiopathic arthritis (JIA) refer to classification systems for chronic arthritis in children. Only one subtype of juvenile arthritis (polyarticular-onset, rheumatoid factor-positive) clinically resembles adult rheumatoid arthritis and is considered its childhood equivalent.

Arthritis, Psoriatic - A type of inflammatory arthritis associated with PSORIASIS, often involving the axial joints and the peripheral terminal interphalangeal joints. It is characterized by the presence of HLA-B27-associated SPONDYLARTHROPATHY, and the absence of rheumatoid factor.

Arthritis, Reactive - An aseptic, inflammatory arthritis developing secondary to a primary extra-articular infection, most typically of the GASTROINTESTINAL TRACT or UROGENITAL SYSTEM. The initiating trigger pathogens are usually SHIGELLA; SALMONELLA; YERSINIA; CAMPYLOBACTER; or CHLAMYDIA TRACHOMATIS. Reactive arthritis is strongly associated with HLA-B27 ANTIGEN.

Arthritis, Rheumatoid - A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated.

Arthritis-Encephalitis Virus, Caprine - A species of LENTIVIRUS, subgenus ovine-caprine lentiviruses (LENTIVIRUSES, OVINE-CAPRINE), closely related to VISNA-MAEDI VIRUS and causing acute encephalomyelitis; chronic arthritis; PNEUMONIA; MASTITIS; and GLOMERULONEPHRITIS in goats. It is transmitted mainly in the colostrum and milk.

Crystal Arthropathies - Joint disorders that are characterized by accumulation of microcrystals in and around the joint including in the SYNOVIAL FLUID. They are classified according to the chemical nature of the crystals such as CALCIUM PYROPHOSPHATE; basic CALCIUM PHOSPHATES; and monosodium urate (see URIC ACID).

Joints - Also known as articulations, these are points of connection between the ends of certain separate bones, or where the borders of other bones are juxtaposed.

Lyme Disease - An infectious disease caused by a spirochete, BORRELIA BURGDORFERI, which is transmitted chiefly by Ixodes dammini (see IXODES) and pacificus ticks in the United States and Ixodes ricinis (see IXODES) in Europe. It is a disease with early and late cutaneous manifestations plus involvement of the nervous system, heart, eye, and joints in variable combinations. The disease was formerly known as Lyme arthritis and first discovered at Old Lyme, Connecticut.

Osteoarthritis - 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.

Osteoarthritis, Hip - Noninflammatory degenerative disease of the hip joint which usually appears in late middle or old age. It is characterized by growth or maturational disturbances in the femoral neck and head, as well as acetabular dysplasia. A dominant symptom is pain on weight-bearing or motion.

Osteoarthritis, Knee - Noninflammatory degenerative disease of the knee joint consisting of three large categories: conditions that block normal synchronous movement, conditions that produce abnormal pathways of motion, and conditions that cause stress concentration resulting in changes to articular cartilage. (Crenshaw, Campbell's Operative Orthopaedics, 8th ed, p2019)

Osteoarthritis, Spine - A degenerative joint disease involving the SPINE. It is characterized by progressive deterioration of the spinal articular cartilage (CARTILAGE, ARTICULAR), usually with hardening of the subchondral bone and outgrowth of bone spurs (OSTEOPHYTE).

Rheumatic Fever - A febrile disease occurring as a delayed sequela of infections with STREPTOCOCCUS PYOGENES. It is characterized by multiple focal inflammatory lesions of the connective tissue structures, such as the heart, blood vessels, and joints (POLYARTHRITIS) and brain, and by the presence of ASCHOFF BODIES in the myocardium and skin.

Rotator Cuff Tear Arthropathy - Rapidly destructive shoulder joint and bone disease found mainly in elderly, and predominantly in women. It is characterized by SHOULDER PAIN; JOINT INSTABILITY; and the presence of crystalline CALCIUM PHOSPHATES in the SYNOVIAL FLUID. It is associated with ROTATOR CUFF INJURIES.

Spine - The spinal or vertebral column.

Spondylarthritis - Inflammation of the joints of the SPINE, the intervertebral articulations.

Instructional Notations

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

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
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)

    • Osteoarthritis (M15-M19)

        • Other and unspecified osteoarthritis (M19)

        • M19 Other and unspecified osteoarthritis
        • 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
        • M19.09 Primary osteoarthritis, other specified site
        • 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
        • M19.19 Post-traumatic osteoarthritis, other specified site
        • 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
        • M19.29 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