ICD-10-CM · Chapter 13 · M00-M99
M12 Other and unspecified arthropathy
Excludes 1 (cannot be coded together)
- arthrosis (M15-M19)
- cricoarytenoid arthropathy (J38.7)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| M12..0 | Chronic postrheumatic arthropathy [Jaccoud] | No |
| M12..00 | Chronic postrheumatic arthropathy [Jaccoud], unspecified site | Yes |
| M12..01 | Chronic postrheumatic arthropathy [Jaccoud], shoulder | No |
| M12..011 | Chronic postrheumatic arthropathy [Jaccoud], right shoulder | Yes |
| M12..012 | Chronic postrheumatic arthropathy [Jaccoud], left shoulder | Yes |
| M12..019 | Chronic postrheumatic arthropathy [Jaccoud], unspecified shoulder | Yes |
| M12..02 | Chronic postrheumatic arthropathy [Jaccoud], elbow | No |
| M12..021 | Chronic postrheumatic arthropathy [Jaccoud], right elbow | Yes |
| M12..022 | Chronic postrheumatic arthropathy [Jaccoud], left elbow | Yes |
| M12..029 | Chronic postrheumatic arthropathy [Jaccoud], unspecified elbow | Yes |
| M12..03 | Chronic postrheumatic arthropathy [Jaccoud], wrist | No |
| M12..031 | Chronic postrheumatic arthropathy [Jaccoud], right wrist | Yes |
| M12..032 | Chronic postrheumatic arthropathy [Jaccoud], left wrist | Yes |
| M12..039 | Chronic postrheumatic arthropathy [Jaccoud], unspecified wrist | Yes |
| M12..04 | Chronic postrheumatic arthropathy [Jaccoud], hand | No |
| M12..041 | Chronic postrheumatic arthropathy [Jaccoud], right hand | Yes |
| M12..042 | Chronic postrheumatic arthropathy [Jaccoud], left hand | Yes |
| M12..049 | Chronic postrheumatic arthropathy [Jaccoud], unspecified hand | Yes |
| M12..05 | Chronic postrheumatic arthropathy [Jaccoud], hip | No |
| M12..051 | Chronic postrheumatic arthropathy [Jaccoud], right hip | Yes |
| M12..052 | Chronic postrheumatic arthropathy [Jaccoud], left hip | Yes |
| M12..059 | Chronic postrheumatic arthropathy [Jaccoud], unspecified hip | Yes |
| M12..06 | Chronic postrheumatic arthropathy [Jaccoud], knee | No |
| M12..061 | Chronic postrheumatic arthropathy [Jaccoud], right knee | Yes |
| M12..062 | Chronic postrheumatic arthropathy [Jaccoud], left knee | Yes |
| M12..069 | Chronic postrheumatic arthropathy [Jaccoud], unspecified knee | Yes |
| M12..07 | Chronic postrheumatic arthropathy [Jaccoud], ankle and foot | No |
| M12..071 | Chronic postrheumatic arthropathy [Jaccoud], right ankle and foot | Yes |
| M12..072 | Chronic postrheumatic arthropathy [Jaccoud], left ankle and foot | Yes |
| M12..079 | Chronic postrheumatic arthropathy [Jaccoud], unspecified ankle and foot | Yes |
| M12..08 | Chronic postrheumatic arthropathy [Jaccoud], other specified site | Yes |
| M12..09 | Chronic postrheumatic arthropathy [Jaccoud], multiple sites | Yes |
| M12..1 | Kaschin-Beck disease | No |
| M12..10 | Kaschin-Beck disease, unspecified site | Yes |
| M12..11 | Kaschin-Beck disease, shoulder | No |
| M12..111 | Kaschin-Beck disease, right shoulder | Yes |
| M12..112 | Kaschin-Beck disease, left shoulder | Yes |
| M12..119 | Kaschin-Beck disease, unspecified shoulder | Yes |
| M12..12 | Kaschin-Beck disease, elbow | No |
| M12..121 | Kaschin-Beck disease, right elbow | Yes |
| M12..122 | Kaschin-Beck disease, left elbow | Yes |
| M12..129 | Kaschin-Beck disease, unspecified elbow | Yes |
| M12..13 | Kaschin-Beck disease, wrist | No |
| M12..131 | Kaschin-Beck disease, right wrist | Yes |
| M12..132 | Kaschin-Beck disease, left wrist | Yes |
| M12..139 | Kaschin-Beck disease, unspecified wrist | Yes |
| M12..14 | Kaschin-Beck disease, hand | No |
| M12..141 | Kaschin-Beck disease, right hand | Yes |
| M12..142 | Kaschin-Beck disease, left hand | Yes |
| M12..149 | Kaschin-Beck disease, unspecified hand | Yes |
| M12..15 | Kaschin-Beck disease, hip | No |
| M12..151 | Kaschin-Beck disease, right hip | Yes |
| M12..152 | Kaschin-Beck disease, left hip | Yes |
| M12..159 | Kaschin-Beck disease, unspecified hip | Yes |
| M12..16 | Kaschin-Beck disease, knee | No |
| M12..161 | Kaschin-Beck disease, right knee | Yes |
| M12..162 | Kaschin-Beck disease, left knee | Yes |
| M12..169 | Kaschin-Beck disease, unspecified knee | Yes |
| M12..17 | Kaschin-Beck disease, ankle and foot | No |
| M12..171 | Kaschin-Beck disease, right ankle and foot | Yes |
| M12..172 | Kaschin-Beck disease, left ankle and foot | Yes |
| M12..179 | Kaschin-Beck disease, unspecified ankle and foot | Yes |
| M12..18 | Kaschin-Beck disease, vertebrae | Yes |
| M12..19 | Kaschin-Beck disease, multiple sites | Yes |
| M12..2 | Villonodular synovitis (pigmented) | No |
| M12..20 | Villonodular synovitis (pigmented), unspecified site | Yes |
| M12..21 | Villonodular synovitis (pigmented), shoulder | No |
| M12..211 | Villonodular synovitis (pigmented), right shoulder | Yes |
| M12..212 | Villonodular synovitis (pigmented), left shoulder | Yes |
| M12..219 | Villonodular synovitis (pigmented), unspecified shoulder | Yes |
| M12..22 | Villonodular synovitis (pigmented), elbow | No |
| M12..221 | Villonodular synovitis (pigmented), right elbow | Yes |
| M12..222 | Villonodular synovitis (pigmented), left elbow | Yes |
| M12..229 | Villonodular synovitis (pigmented), unspecified elbow | Yes |
| M12..23 | Villonodular synovitis (pigmented), wrist | No |
| M12..231 | Villonodular synovitis (pigmented), right wrist | Yes |
| M12..232 | Villonodular synovitis (pigmented), left wrist | Yes |
| M12..239 | Villonodular synovitis (pigmented), unspecified wrist | Yes |
| M12..24 | Villonodular synovitis (pigmented), hand | No |
| M12..241 | Villonodular synovitis (pigmented), right hand | Yes |
| M12..242 | Villonodular synovitis (pigmented), left hand | Yes |
| M12..249 | Villonodular synovitis (pigmented), unspecified hand | Yes |
| M12..25 | Villonodular synovitis (pigmented), hip | No |
| M12..251 | Villonodular synovitis (pigmented), right hip | Yes |
| M12..252 | Villonodular synovitis (pigmented), left hip | Yes |
| M12..259 | Villonodular synovitis (pigmented), unspecified hip | Yes |
| M12..26 | Villonodular synovitis (pigmented), knee | No |
| M12..261 | Villonodular synovitis (pigmented), right knee | Yes |
| M12..262 | Villonodular synovitis (pigmented), left knee | Yes |
| M12..269 | Villonodular synovitis (pigmented), unspecified knee | Yes |
| M12..27 | Villonodular synovitis (pigmented), ankle and foot | No |
| M12..271 | Villonodular synovitis (pigmented), right ankle and foot | Yes |
| M12..272 | Villonodular synovitis (pigmented), left ankle and foot | Yes |
| M12..279 | Villonodular synovitis (pigmented), unspecified ankle and foot | Yes |
| M12..28 | Villonodular synovitis (pigmented), other specified site | Yes |
| M12..29 | Villonodular synovitis (pigmented), multiple sites | Yes |
| M12..3 | Palindromic rheumatism | No |
| M12..30 | Palindromic rheumatism, unspecified site | Yes |
| M12..31 | Palindromic rheumatism, shoulder | No |
| M12..311 | Palindromic rheumatism, right shoulder | Yes |
| M12..312 | Palindromic rheumatism, left shoulder | Yes |
| M12..319 | Palindromic rheumatism, unspecified shoulder | Yes |
| M12..32 | Palindromic rheumatism, elbow | No |
| M12..321 | Palindromic rheumatism, right elbow | Yes |
| M12..322 | Palindromic rheumatism, left elbow | Yes |
| M12..329 | Palindromic rheumatism, unspecified elbow | Yes |
| M12..33 | Palindromic rheumatism, wrist | No |
| M12..331 | Palindromic rheumatism, right wrist | Yes |
| M12..332 | Palindromic rheumatism, left wrist | Yes |
| M12..339 | Palindromic rheumatism, unspecified wrist | Yes |
| M12..34 | Palindromic rheumatism, hand | No |
| M12..341 | Palindromic rheumatism, right hand | Yes |
| M12..342 | Palindromic rheumatism, left hand | Yes |
| M12..349 | Palindromic rheumatism, unspecified hand | Yes |
| M12..35 | Palindromic rheumatism, hip | No |
| M12..351 | Palindromic rheumatism, right hip | Yes |
| M12..352 | Palindromic rheumatism, left hip | Yes |
| M12..359 | Palindromic rheumatism, unspecified hip | Yes |
| M12..36 | Palindromic rheumatism, knee | No |
| M12..361 | Palindromic rheumatism, right knee | Yes |
| M12..362 | Palindromic rheumatism, left knee | Yes |
| M12..369 | Palindromic rheumatism, unspecified knee | Yes |
| M12..37 | Palindromic rheumatism, ankle and foot | No |
| M12..371 | Palindromic rheumatism, right ankle and foot | Yes |
| M12..372 | Palindromic rheumatism, left ankle and foot | Yes |
| M12..379 | Palindromic rheumatism, unspecified ankle and foot | Yes |
| M12..38 | Palindromic rheumatism, other specified site | Yes |
| M12..39 | Palindromic rheumatism, multiple sites | Yes |
| M12..4 | Intermittent hydrarthrosis | No |
| M12..40 | Intermittent hydrarthrosis, unspecified site | Yes |
| M12..41 | Intermittent hydrarthrosis, shoulder | No |
| M12..411 | Intermittent hydrarthrosis, right shoulder | Yes |
| M12..412 | Intermittent hydrarthrosis, left shoulder | Yes |
| M12..419 | Intermittent hydrarthrosis, unspecified shoulder | Yes |
| M12..42 | Intermittent hydrarthrosis, elbow | No |
| M12..421 | Intermittent hydrarthrosis, right elbow | Yes |
| M12..422 | Intermittent hydrarthrosis, left elbow | Yes |
| M12..429 | Intermittent hydrarthrosis, unspecified elbow | Yes |
| M12..43 | Intermittent hydrarthrosis, wrist | No |
| M12..431 | Intermittent hydrarthrosis, right wrist | Yes |
| M12..432 | Intermittent hydrarthrosis, left wrist | Yes |
| M12..439 | Intermittent hydrarthrosis, unspecified wrist | Yes |
| M12..44 | Intermittent hydrarthrosis, hand | No |
| M12..441 | Intermittent hydrarthrosis, right hand | Yes |
| M12..442 | Intermittent hydrarthrosis, left hand | Yes |
| M12..449 | Intermittent hydrarthrosis, unspecified hand | Yes |
| M12..45 | Intermittent hydrarthrosis, hip | No |
| M12..451 | Intermittent hydrarthrosis, right hip | Yes |
| M12..452 | Intermittent hydrarthrosis, left hip | Yes |
| M12..459 | Intermittent hydrarthrosis, unspecified hip | Yes |
| M12..46 | Intermittent hydrarthrosis, knee | No |
| M12..461 | Intermittent hydrarthrosis, right knee | Yes |
| M12..462 | Intermittent hydrarthrosis, left knee | Yes |
| M12..469 | Intermittent hydrarthrosis, unspecified knee | Yes |
| M12..47 | Intermittent hydrarthrosis, ankle and foot | No |
| M12..471 | Intermittent hydrarthrosis, right ankle and foot | Yes |
| M12..472 | Intermittent hydrarthrosis, left ankle and foot | Yes |
| M12..479 | Intermittent hydrarthrosis, unspecified ankle and foot | Yes |
| M12..48 | Intermittent hydrarthrosis, other site | Yes |
| M12..49 | Intermittent hydrarthrosis, multiple sites | Yes |
| M12..5 | Traumatic arthropathy | No |
| M12..50 | Traumatic arthropathy, unspecified site | Yes |
| M12..51 | Traumatic arthropathy, shoulder | No |
| M12..511 | Traumatic arthropathy, right shoulder | Yes |
| M12..512 | Traumatic arthropathy, left shoulder | Yes |
| M12..519 | Traumatic arthropathy, unspecified shoulder | Yes |
| M12..52 | Traumatic arthropathy, elbow | No |
| M12..521 | Traumatic arthropathy, right elbow | Yes |
| M12..522 | Traumatic arthropathy, left elbow | Yes |
| M12..529 | Traumatic arthropathy, unspecified elbow | Yes |
| M12..53 | Traumatic arthropathy, wrist | No |
| M12..531 | Traumatic arthropathy, right wrist | Yes |
| M12..532 | Traumatic arthropathy, left wrist | Yes |
| M12..539 | Traumatic arthropathy, unspecified wrist | Yes |
| M12..54 | Traumatic arthropathy, hand | No |
| M12..541 | Traumatic arthropathy, right hand | Yes |
| M12..542 | Traumatic arthropathy, left hand | Yes |
| M12..549 | Traumatic arthropathy, unspecified hand | Yes |
| M12..55 | Traumatic arthropathy, hip | No |
| M12..551 | Traumatic arthropathy, right hip | Yes |
| M12..552 | Traumatic arthropathy, left hip | Yes |
| M12..559 | Traumatic arthropathy, unspecified hip | Yes |
| M12..56 | Traumatic arthropathy, knee | No |
| M12..561 | Traumatic arthropathy, right knee | Yes |
| M12..562 | Traumatic arthropathy, left knee | Yes |
| M12..569 | Traumatic arthropathy, unspecified knee | Yes |
| M12..57 | Traumatic arthropathy, ankle and foot | No |
| M12..571 | Traumatic arthropathy, right ankle and foot | Yes |
| M12..572 | Traumatic arthropathy, left ankle and foot | Yes |
| M12..579 | Traumatic arthropathy, unspecified ankle and foot | Yes |
| M12..58 | Traumatic arthropathy, other specified site | Yes |
| M12..59 | Traumatic arthropathy, multiple sites | Yes |
| M12..8 | Other specific arthropathies, not elsewhere classified | No |
| M12..80 | Other specific arthropathies, not elsewhere classified, unspecified site | Yes |
| M12..81 | Other specific arthropathies, not elsewhere classified, shoulder | No |
| M12..811 | Other specific arthropathies, not elsewhere classified, right shoulder | Yes |
| M12..812 | Other specific arthropathies, not elsewhere classified, left shoulder | Yes |
| M12..819 | Other specific arthropathies, not elsewhere classified, unspecified shoulder | Yes |
| M12..82 | Other specific arthropathies, not elsewhere classified, elbow | No |
| M12..821 | Other specific arthropathies, not elsewhere classified, right elbow | Yes |
| M12..822 | Other specific arthropathies, not elsewhere classified, left elbow | Yes |
| M12..829 | Other specific arthropathies, not elsewhere classified, unspecified elbow | Yes |
| M12..83 | Other specific arthropathies, not elsewhere classified, wrist | No |
| M12..831 | Other specific arthropathies, not elsewhere classified, right wrist | Yes |
| M12..832 | Other specific arthropathies, not elsewhere classified, left wrist | Yes |
| M12..839 | Other specific arthropathies, not elsewhere classified, unspecified wrist | Yes |
| M12..84 | Other specific arthropathies, not elsewhere classified, hand | No |
| M12..841 | Other specific arthropathies, not elsewhere classified, right hand | Yes |
| M12..842 | Other specific arthropathies, not elsewhere classified, left hand | Yes |
| M12..849 | Other specific arthropathies, not elsewhere classified, unspecified hand | Yes |
| M12..85 | Other specific arthropathies, not elsewhere classified, hip | No |
| M12..851 | Other specific arthropathies, not elsewhere classified, right hip | Yes |
| M12..852 | Other specific arthropathies, not elsewhere classified, left hip | Yes |
| M12..859 | Other specific arthropathies, not elsewhere classified, unspecified hip | Yes |
| M12..86 | Other specific arthropathies, not elsewhere classified, knee | No |
| M12..861 | Other specific arthropathies, not elsewhere classified, right knee | Yes |
| M12..862 | Other specific arthropathies, not elsewhere classified, left knee | Yes |
| M12..869 | Other specific arthropathies, not elsewhere classified, unspecified knee | Yes |
| M12..87 | Other specific arthropathies, not elsewhere classified, ankle and foot | No |
| M12..871 | Other specific arthropathies, not elsewhere classified, right ankle and foot | Yes |
| M12..872 | Other specific arthropathies, not elsewhere classified, left ankle and foot | Yes |
| M12..879 | Other specific arthropathies, not elsewhere classified, unspecified ankle and foot | Yes |
| M12..88 | Other specific arthropathies, not elsewhere classified, other specified site | Yes |
| M12..89 | Other specific arthropathies, not elsewhere classified, multiple sites | Yes |
| M12..9 | Arthropathy, unspecified | Yes |
Last reviewed: September 2026