M13 Other arthritis
ICD-10-CM category M13 sits in Chapter 13 (Diseases of the musculoskeletal system and connective tissue, M00-M99). It contains 47 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
M13.1 Monoarthritis, not elsewhere classifiedM13.11 Monoarthritis, not elsewhere classified, shoulderM13.12 Monoarthritis, not elsewhere classified, elbowM13.13 Monoarthritis, not elsewhere classified, wristM13.14 Monoarthritis, not elsewhere classified, handM13.15 Monoarthritis, not elsewhere classified, hipM13.16 Monoarthritis, not elsewhere classified, kneeM13.17 Monoarthritis, not elsewhere classified, ankle and footM13.8 Other specified arthritisM13.81 Other specified arthritis, shoulderM13.82 Other specified arthritis, elbowM13.83 Other specified arthritis, wristM13.84 Other specified arthritis, handM13.85 Other specified arthritis, hipM13.86 Other specified arthritis, kneeM13.87 Other specified arthritis, ankle and foot
Billable codes in M13
| Code | Description |
|---|---|
M13.0 | Polyarthritis, unspecified |
M13.10 | Monoarthritis, not elsewhere classified, unspecified site |
M13.111 | Monoarthritis, not elsewhere classified, right shoulder |
M13.112 | Monoarthritis, not elsewhere classified, left shoulder |
M13.119 | Monoarthritis, not elsewhere classified, unspecified shoulder |
M13.121 | Monoarthritis, not elsewhere classified, right elbow |
M13.122 | Monoarthritis, not elsewhere classified, left elbow |
M13.129 | Monoarthritis, not elsewhere classified, unspecified elbow |
M13.131 | Monoarthritis, not elsewhere classified, right wrist |
M13.132 | Monoarthritis, not elsewhere classified, left wrist |
M13.139 | Monoarthritis, not elsewhere classified, unspecified wrist |
M13.141 | Monoarthritis, not elsewhere classified, right hand |
M13.142 | Monoarthritis, not elsewhere classified, left hand |
M13.149 | Monoarthritis, not elsewhere classified, unspecified hand |
M13.151 | Monoarthritis, not elsewhere classified, right hip |
M13.152 | Monoarthritis, not elsewhere classified, left hip |
M13.159 | Monoarthritis, not elsewhere classified, unspecified hip |
M13.161 | Monoarthritis, not elsewhere classified, right knee |
M13.162 | Monoarthritis, not elsewhere classified, left knee |
M13.169 | Monoarthritis, not elsewhere classified, unspecified knee |
M13.171 | Monoarthritis, not elsewhere classified, right ankle and foot |
M13.172 | Monoarthritis, not elsewhere classified, left ankle and foot |
M13.179 | Monoarthritis, not elsewhere classified, unspecified ankle and foot |
M13.80 | Other specified arthritis, unspecified site |
M13.811 | Other specified arthritis, right shoulder |
M13.812 | Other specified arthritis, left shoulder |
M13.819 | Other specified arthritis, unspecified shoulder |
M13.821 | Other specified arthritis, right elbow |
M13.822 | Other specified arthritis, left elbow |
M13.829 | Other specified arthritis, unspecified elbow |
M13.831 | Other specified arthritis, right wrist |
M13.832 | Other specified arthritis, left wrist |
M13.839 | Other specified arthritis, unspecified wrist |
M13.841 | Other specified arthritis, right hand |
M13.842 | Other specified arthritis, left hand |
M13.849 | Other specified arthritis, unspecified hand |
M13.851 | Other specified arthritis, right hip |
M13.852 | Other specified arthritis, left hip |
M13.859 | Other specified arthritis, unspecified hip |
M13.861 | Other specified arthritis, right knee |
M13.862 | Other specified arthritis, left knee |
M13.869 | Other specified arthritis, unspecified knee |
M13.871 | Other specified arthritis, right ankle and foot |
M13.872 | Other specified arthritis, left ankle and foot |
M13.879 | Other specified arthritis, unspecified ankle and foot |
M13.88 | Other specified arthritis, other site |
M13.89 | Other specified arthritis, multiple sites |
Search within ICD-10-CM for M13 and related codes