ICD-10-CM M12: Other and unspecified arthropathy

ICD-10-CM Diagnosis Code (2025)

Official Description for M12

Other and unspecified arthropathy

Coding Notes & Guidelines for M12

Excludes1: Not Coded Here
  • arthrosis (M15-M19)
  • cricoarytenoid arthropathy (J38.7)
Excludes1: Not Coded Here
  • current injury-see Alphabetic Index
  • post-traumatic osteoarthritis of first carpometacarpal joint (M18.2-M18.3)
  • post-traumatic osteoarthritis of hip (M16.4-M16.5)
  • post-traumatic osteoarthritis of knee (M17.2-M17.3)
  • post-traumatic osteoarthritis NOS (M19.1-)
  • post-traumatic osteoarthritis of other single joints (M19.1-)
Inclusion Terms

Chronic postrheumatic arthropathy [Jaccoud], vertebrae

Inclusion Terms

Osteochondroarthrosis deformans endemica

Inclusion Terms

Villonodular synovitis (pigmented), vertebrae

Inclusion Terms

Palindromic rheumatism, vertebrae

Inclusion Terms

Traumatic arthropathy, vertebrae

Inclusion Terms

Transient arthropathy

Inclusion Terms

Other specific arthropathies, not elsewhere classified, vertebrae

Child Codes (More Specific Codes for M12):

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

About ICD-10-CM Code M12 (Other and unspecified arthropathy)

ICD-10-CM code M12 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM M12 became effective on October 1, 2024.

This page provides detailed information about M12 - Other and unspecified arthropathy. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other and unspecified arthropathy.