ICD-10 Code
International Classification of Diseases, 10th Revision
Aug 20, 2018

See: Other and unspecified arthropathy

M12 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Other and unspecified arthropathy
Excludes1
  • arthrosis (M15-M19)
  • cricoarytenoid arthropathy (J38.7)

More specific codes for Other and unspecified arthropathy

  • M12.0 - Chronic postrheumatic arthropathy [Jaccoud]
    • M12.00 - Chronic postrheumatic arthropathy [Jaccoud], unspecified site
    • M12.01 - Chronic postrheumatic arthropathy [Jaccoud], shoulder
      • M12.011 - Chronic postrheumatic arthropathy [Jaccoud], right shoulder
      • M12.012 - Chronic postrheumatic arthropathy [Jaccoud], left shoulder
      • M12.019 - Chronic postrheumatic arthropathy [Jaccoud], unspecified shoulder
    • M12.02 - Chronic postrheumatic arthropathy [Jaccoud], elbow
      • M12.021 - Chronic postrheumatic arthropathy [Jaccoud], right elbow
      • M12.022 - Chronic postrheumatic arthropathy [Jaccoud], left elbow
      • M12.029 - Chronic postrheumatic arthropathy [Jaccoud], unspecified elbow
    • M12.03 - Chronic postrheumatic arthropathy [Jaccoud], wrist
      • M12.031 - Chronic postrheumatic arthropathy [Jaccoud], right wrist
      • M12.032 - Chronic postrheumatic arthropathy [Jaccoud], left wrist
      • M12.039 - Chronic postrheumatic arthropathy [Jaccoud], unspecified wrist
    • M12.04 - Chronic postrheumatic arthropathy [Jaccoud], hand
      • M12.041 - Chronic postrheumatic arthropathy [Jaccoud], right hand
      • M12.042 - Chronic postrheumatic arthropathy [Jaccoud], left hand
      • M12.049 - Chronic postrheumatic arthropathy [Jaccoud], unspecified hand
    • M12.05 - Chronic postrheumatic arthropathy [Jaccoud], hip
      • M12.051 - Chronic postrheumatic arthropathy [Jaccoud], right hip
      • M12.052 - Chronic postrheumatic arthropathy [Jaccoud], left hip
      • M12.059 - Chronic postrheumatic arthropathy [Jaccoud], unspecified hip
    • M12.06 - Chronic postrheumatic arthropathy [Jaccoud], knee
      • M12.061 - Chronic postrheumatic arthropathy [Jaccoud], right knee
      • M12.062 - Chronic postrheumatic arthropathy [Jaccoud], left knee
      • M12.069 - Chronic postrheumatic arthropathy [Jaccoud], unspecified knee
    • M12.07 - Chronic postrheumatic arthropathy [Jaccoud], ankle and foot
      • M12.071 - Chronic postrheumatic arthropathy [Jaccoud], right ankle and foot
      • M12.072 - Chronic postrheumatic arthropathy [Jaccoud], left ankle and foot
      • M12.079 - Chronic postrheumatic arthropathy [Jaccoud], unspecified ankle and foot
    • M12.08 - Chronic postrheumatic arthropathy [Jaccoud], other specified site
    • M12.09 - Chronic postrheumatic arthropathy [Jaccoud], multiple sites
  • M12.1 - Kaschin-Beck disease
    • M12.10 - Kaschin-Beck disease, unspecified site
    • M12.11 - Kaschin-Beck disease, shoulder
      • M12.111 - Kaschin-Beck disease, right shoulder
      • M12.112 - Kaschin-Beck disease, left shoulder
      • M12.119 - Kaschin-Beck disease, unspecified shoulder
    • M12.12 - Kaschin-Beck disease, elbow
      • M12.121 - Kaschin-Beck disease, right elbow
      • M12.122 - Kaschin-Beck disease, left elbow
      • M12.129 - Kaschin-Beck disease, unspecified elbow
    • M12.13 - Kaschin-Beck disease, wrist
      • M12.131 - Kaschin-Beck disease, right wrist
      • M12.132 - Kaschin-Beck disease, left wrist
      • M12.139 - Kaschin-Beck disease, unspecified wrist
    • M12.14 - Kaschin-Beck disease, hand
      • M12.141 - Kaschin-Beck disease, right hand
      • M12.142 - Kaschin-Beck disease, left hand
      • M12.149 - Kaschin-Beck disease, unspecified hand
    • M12.15 - Kaschin-Beck disease, hip
      • M12.151 - Kaschin-Beck disease, right hip
      • M12.152 - Kaschin-Beck disease, left hip
      • M12.159 - Kaschin-Beck disease, unspecified hip
    • M12.16 - Kaschin-Beck disease, knee
      • M12.161 - Kaschin-Beck disease, right knee
      • M12.162 - Kaschin-Beck disease, left knee
      • M12.169 - Kaschin-Beck disease, unspecified knee
    • M12.17 - Kaschin-Beck disease, ankle and foot
      • M12.171 - Kaschin-Beck disease, right ankle and foot
      • M12.172 - Kaschin-Beck disease, left ankle and foot
      • M12.179 - Kaschin-Beck disease, unspecified ankle and foot
    • M12.18 - Kaschin-Beck disease, vertebrae
    • M12.19 - Kaschin-Beck disease, multiple sites
  • M12.2 - Villonodular synovitis (pigmented)
    • M12.20 - Villonodular synovitis (pigmented), unspecified site
    • M12.21 - Villonodular synovitis (pigmented), shoulder
      • M12.211 - Villonodular synovitis (pigmented), right shoulder
      • M12.212 - Villonodular synovitis (pigmented), left shoulder
      • M12.219 - Villonodular synovitis (pigmented), unspecified shoulder
    • M12.22 - Villonodular synovitis (pigmented), elbow
      • M12.221 - Villonodular synovitis (pigmented), right elbow
      • M12.222 - Villonodular synovitis (pigmented), left elbow
      • M12.229 - Villonodular synovitis (pigmented), unspecified elbow
    • M12.23 - Villonodular synovitis (pigmented), wrist
      • M12.231 - Villonodular synovitis (pigmented), right wrist
      • M12.232 - Villonodular synovitis (pigmented), left wrist
      • M12.239 - Villonodular synovitis (pigmented), unspecified wrist
    • M12.24 - Villonodular synovitis (pigmented), hand
      • M12.241 - Villonodular synovitis (pigmented), right hand
      • M12.242 - Villonodular synovitis (pigmented), left hand
      • M12.249 - Villonodular synovitis (pigmented), unspecified hand
    • M12.25 - Villonodular synovitis (pigmented), hip
      • M12.251 - Villonodular synovitis (pigmented), right hip
      • M12.252 - Villonodular synovitis (pigmented), left hip
      • M12.259 - Villonodular synovitis (pigmented), unspecified hip
    • M12.26 - Villonodular synovitis (pigmented), knee
      • M12.261 - Villonodular synovitis (pigmented), right knee
      • M12.262 - Villonodular synovitis (pigmented), left knee
      • M12.269 - Villonodular synovitis (pigmented), unspecified knee
    • M12.27 - Villonodular synovitis (pigmented), ankle and foot
      • M12.271 - Villonodular synovitis (pigmented), right ankle and foot
      • M12.272 - Villonodular synovitis (pigmented), left ankle and foot
      • M12.279 - Villonodular synovitis (pigmented), unspecified ankle and foot
    • M12.28 - Villonodular synovitis (pigmented), other specified site
    • M12.29 - Villonodular synovitis (pigmented), multiple sites
  • M12.3 - Palindromic rheumatism
    • M12.30 - Palindromic rheumatism, unspecified site
    • M12.31 - Palindromic rheumatism, shoulder
      • M12.311 - Palindromic rheumatism, right shoulder
      • M12.312 - Palindromic rheumatism, left shoulder
      • M12.319 - Palindromic rheumatism, unspecified shoulder
    • M12.32 - Palindromic rheumatism, elbow
      • M12.321 - Palindromic rheumatism, right elbow
      • M12.322 - Palindromic rheumatism, left elbow
      • M12.329 - Palindromic rheumatism, unspecified elbow
    • M12.33 - Palindromic rheumatism, wrist
      • M12.331 - Palindromic rheumatism, right wrist
      • M12.332 - Palindromic rheumatism, left wrist
      • M12.339 - Palindromic rheumatism, unspecified wrist
    • M12.34 - Palindromic rheumatism, hand
      • M12.341 - Palindromic rheumatism, right hand
      • M12.342 - Palindromic rheumatism, left hand
      • M12.349 - Palindromic rheumatism, unspecified hand
    • M12.35 - Palindromic rheumatism, hip
      • M12.351 - Palindromic rheumatism, right hip
      • M12.352 - Palindromic rheumatism, left hip
      • M12.359 - Palindromic rheumatism, unspecified hip
    • M12.36 - Palindromic rheumatism, knee
      • M12.361 - Palindromic rheumatism, right knee
      • M12.362 - Palindromic rheumatism, left knee
      • M12.369 - Palindromic rheumatism, unspecified knee
    • M12.37 - Palindromic rheumatism, ankle and foot
      • M12.371 - Palindromic rheumatism, right ankle and foot
      • M12.372 - Palindromic rheumatism, left ankle and foot
      • M12.379 - Palindromic rheumatism, unspecified ankle and foot
    • M12.38 - Palindromic rheumatism, other specified site
    • M12.39 - Palindromic rheumatism, multiple sites
  • M12.4 - Intermittent hydrarthrosis
    • M12.40 - Intermittent hydrarthrosis, unspecified site
    • M12.41 - Intermittent hydrarthrosis, shoulder
      • M12.411 - Intermittent hydrarthrosis, right shoulder
      • M12.412 - Intermittent hydrarthrosis, left shoulder
      • M12.419 - Intermittent hydrarthrosis, unspecified shoulder
    • M12.42 - Intermittent hydrarthrosis, elbow
      • M12.421 - Intermittent hydrarthrosis, right elbow
      • M12.422 - Intermittent hydrarthrosis, left elbow
      • M12.429 - Intermittent hydrarthrosis, unspecified elbow
    • M12.43 - Intermittent hydrarthrosis, wrist
      • M12.431 - Intermittent hydrarthrosis, right wrist
      • M12.432 - Intermittent hydrarthrosis, left wrist
      • M12.439 - Intermittent hydrarthrosis, unspecified wrist
    • M12.44 - Intermittent hydrarthrosis, hand
      • M12.441 - Intermittent hydrarthrosis, right hand
      • M12.442 - Intermittent hydrarthrosis, left hand
      • M12.449 - Intermittent hydrarthrosis, unspecified hand
    • M12.45 - Intermittent hydrarthrosis, hip
      • M12.451 - Intermittent hydrarthrosis, right hip
      • M12.452 - Intermittent hydrarthrosis, left hip
      • M12.459 - Intermittent hydrarthrosis, unspecified hip
    • M12.46 - Intermittent hydrarthrosis, knee
      • M12.461 - Intermittent hydrarthrosis, right knee
      • M12.462 - Intermittent hydrarthrosis, left knee
      • M12.469 - Intermittent hydrarthrosis, unspecified knee
    • M12.47 - Intermittent hydrarthrosis, ankle and foot
      • M12.471 - Intermittent hydrarthrosis, right ankle and foot
      • M12.472 - Intermittent hydrarthrosis, left ankle and foot
      • M12.479 - Intermittent hydrarthrosis, unspecified ankle and foot
    • M12.48 - Intermittent hydrarthrosis, other site
    • M12.49 - Intermittent hydrarthrosis, multiple sites
  • M12.5 - Traumatic arthropathy
    • M12.50 - Traumatic arthropathy, unspecified site
    • M12.51 - Traumatic arthropathy, shoulder
      • M12.511 - Traumatic arthropathy, right shoulder
      • M12.512 - Traumatic arthropathy, left shoulder
      • M12.519 - Traumatic arthropathy, unspecified shoulder
    • M12.52 - Traumatic arthropathy, elbow
      • M12.521 - Traumatic arthropathy, right elbow
      • M12.522 - Traumatic arthropathy, left elbow
      • M12.529 - Traumatic arthropathy, unspecified elbow
    • M12.53 - Traumatic arthropathy, wrist
      • M12.531 - Traumatic arthropathy, right wrist
      • M12.532 - Traumatic arthropathy, left wrist
      • M12.539 - Traumatic arthropathy, unspecified wrist
    • M12.54 - Traumatic arthropathy, hand
      • M12.541 - Traumatic arthropathy, right hand
      • M12.542 - Traumatic arthropathy, left hand
      • M12.549 - Traumatic arthropathy, unspecified hand
    • M12.55 - Traumatic arthropathy, hip
      • M12.551 - Traumatic arthropathy, right hip
      • M12.552 - Traumatic arthropathy, left hip
      • M12.559 - Traumatic arthropathy, unspecified hip
    • M12.56 - Traumatic arthropathy, knee
      • M12.561 - Traumatic arthropathy, right knee
      • M12.562 - Traumatic arthropathy, left knee
      • M12.569 - Traumatic arthropathy, unspecified knee
    • M12.57 - Traumatic arthropathy, ankle and foot
      • M12.571 - Traumatic arthropathy, right ankle and foot
      • M12.572 - Traumatic arthropathy, left ankle and foot
      • M12.579 - Traumatic arthropathy, unspecified ankle and foot
    • M12.58 - Traumatic arthropathy, other specified site
    • M12.59 - Traumatic arthropathy, multiple sites
  • M12.8 - Other specific arthropathies, not elsewhere classified
    • M12.80 - Other specific arthropathies, not elsewhere classified, unspecified site
    • M12.81 - Other specific arthropathies, not elsewhere classified, shoulder
      • M12.811 - Other specific arthropathies, not elsewhere classified, right shoulder
      • M12.812 - Other specific arthropathies, not elsewhere classified, left shoulder
      • M12.819 - Other specific arthropathies, not elsewhere classified, unspecified shoulder
    • M12.82 - Other specific arthropathies, not elsewhere classified, elbow
      • M12.821 - Other specific arthropathies, not elsewhere classified, right elbow
      • M12.822 - Other specific arthropathies, not elsewhere classified, left elbow
      • M12.829 - Other specific arthropathies, not elsewhere classified, unspecified elbow
    • M12.83 - Other specific arthropathies, not elsewhere classified, wrist
      • M12.831 - Other specific arthropathies, not elsewhere classified, right wrist
      • M12.832 - Other specific arthropathies, not elsewhere classified, left wrist
      • M12.839 - Other specific arthropathies, not elsewhere classified, unspecified wrist
    • M12.84 - Other specific arthropathies, not elsewhere classified, hand
      • M12.841 - Other specific arthropathies, not elsewhere classified, right hand
      • M12.842 - Other specific arthropathies, not elsewhere classified, left hand
      • M12.849 - Other specific arthropathies, not elsewhere classified, unspecified hand
    • M12.85 - Other specific arthropathies, not elsewhere classified, hip
      • M12.851 - Other specific arthropathies, not elsewhere classified, right hip
      • M12.852 - Other specific arthropathies, not elsewhere classified, left hip
      • M12.859 - Other specific arthropathies, not elsewhere classified, unspecified hip
    • M12.86 - Other specific arthropathies, not elsewhere classified, knee
      • M12.861 - Other specific arthropathies, not elsewhere classified, right knee
      • M12.862 - Other specific arthropathies, not elsewhere classified, left knee
      • M12.869 - Other specific arthropathies, not elsewhere classified, unspecified knee
    • M12.87 - Other specific arthropathies, not elsewhere classified, ankle and foot
      • M12.871 - Other specific arthropathies, not elsewhere classified, right ankle and foot
      • M12.872 - Other specific arthropathies, not elsewhere classified, left ankle and foot
      • M12.879 - Other specific arthropathies, not elsewhere classified, unspecified ankle and foot
    • M12.88 - Other specific arthropathies, not elsewhere classified, other specified site
    • M12.89 - Other specific arthropathies, not elsewhere classified, multiple sites
  • M12.9 - Arthropathy, unspecified
See also ICD 10 code for
Back to M12
See the ICD-10-CM Coding Guidelines.

Questions related to M12 Other and unspecified arthropathy

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.