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ICD-10-CM Codes
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M00-M99
Diseases of the musculoskeletal system and connective tissue
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M65-M67
Disorders of synovium and tendon
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M66-
Spontaneous rupture of synovium and tendon
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2021 ICD-10-CM Diagnosis Code M66.12
2021 ICD-10-CM Diagnosis Code M66.12
Rupture of synovium, elbow
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
- M66.12 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2021 edition of ICD-10-CM M66.12 became effective on October 1, 2020.
- This is the American ICD-10-CM version of M66.12 - other international versions of ICD-10 M66.12 may differ.
The following code(s) above
M66.12 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
M66.12:
- M00-M99
2021 ICD-10-CM Range M00-M99
Diseases of the musculoskeletal system and connective tissueNote- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Type 2 Excludes- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- M66
ICD-10-CM Diagnosis Code M66
Spontaneous rupture of synovium and tendon
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
Includes- rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength
Type 2 Excludes- rotator cuff syndrome (M75.1-)
- rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region
- M66.1
ICD-10-CM Diagnosis Code M66.1
Rupture of synovium
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
Type 2 Excludes- rupture of popliteal cyst (M66.0)
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- Rupture, ruptured
- synovium (cyst) M66.10
ICD-10-CM Diagnosis Code M66.10
Rupture of synovium, unspecified joint
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- elbow M66.12-
- upper arm M66.12-
ICD-10-CM Codes Adjacent To M66.12
M65.9 Synovitis and tenosynovitis, unspecified
M66 Spontaneous rupture of synovium and tendon
M66.0 Rupture of popliteal cyst
M66.1 Rupture of synovium
M66.11 Rupture of synovium, shoulder
M66.111 Rupture of synovium, right shoulder
M66.112 Rupture of synovium, left shoulder
M66.119 Rupture of synovium, unspecified shoulder
M66.12
Rupture of synovium, elbow
M66.121 Rupture of synovium, right elbow
M66.122 Rupture of synovium, left elbow
M66.129 Rupture of synovium, unspecified elbow
M66.13 Rupture of synovium, wrist
M66.131 Rupture of synovium, right wrist
M66.132 Rupture of synovium, left wrist
M66.139 Rupture of synovium, unspecified wrist
M66.14 Rupture of synovium, hand and fingers
M66.141 Rupture of synovium, right hand
M66.142 Rupture of synovium, left hand
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
