2021

  1. ICD-10-CM Codes
    2. ›
  2. M00-M99 Diseases of the musculoskeletal system and connective tissue
    3. ›
  3. M65-M67 Disorders of synovium and tendon
    4. ›
  4. M66- Spontaneous rupture of synovium and tendon
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code M66.229

2021 ICD-10-CM Diagnosis Code M66.229

Spontaneous rupture of extensor tendons, unspecified upper arm

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M66.229 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Spontaneous rupture of extensor tendons, unsp upper arm
  • The 2021 edition of ICD-10-CM M66.229 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M66.229 - other international versions of ICD-10 M66.229 may differ.
The following code(s) above M66.229 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 M66.229:
  • M00-M99
    2021 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • 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)
    Diseases of the musculoskeletal system and connective tissue
  • 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
    Spontaneous rupture of synovium and tendon
Approximate Synonyms
  • Spontaneous rupture of extensor tendon of upper arm
  • Spontaneous rupture of extensor tendons of upper arm
ICD-10-CM M66.229 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 557 Tendonitis, myositis and bursitis with mcc
  • 558 Tendonitis, myositis and bursitis without mcc

Convert M66.229 to ICD-9-CM

Code History
  • 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
ICD-10-CM Codes Adjacent To M66.229
M66.18 …… other site
M66.2 Spontaneous rupture of extensor tendons
M66.20 …… unspecified site
M66.21 Spontaneous rupture of extensor tendons, shoulder
M66.211 Spontaneous rupture of extensor tendons, right shoulder
M66.212 Spontaneous rupture of extensor tendons, left shoulder
M66.219 Spontaneous rupture of extensor tendons, unspecified shoulder
M66.22 Spontaneous rupture of extensor tendons, upper arm
M66.221 Spontaneous rupture of extensor tendons, right upper arm
M66.222 Spontaneous rupture of extensor tendons, left upper arm
M66.229 Spontaneous rupture of extensor tendons, unspecified upper arm
M66.23 Spontaneous rupture of extensor tendons, forearm
M66.231 Spontaneous rupture of extensor tendons, right forearm
M66.232 Spontaneous rupture of extensor tendons, left forearm
M66.239 Spontaneous rupture of extensor tendons, unspecified forearm
M66.24 Spontaneous rupture of extensor tendons, hand
M66.241 Spontaneous rupture of extensor tendons, right hand
M66.242 Spontaneous rupture of extensor tendons, left hand
M66.249 Spontaneous rupture of extensor tendons, unspecified hand
M66.25 Spontaneous rupture of extensor tendons, thigh
M66.251 Spontaneous rupture of extensor tendons, right thigh

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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