2023/2022

  1. ICD-10-CM Codes
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  2. M00-M99
    3. ›
  3. M30-M36
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  4. M33-
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  5. 2023 ICD-10-CM Diagnosis Code M33.13

2023 ICD-10-CM Diagnosis Code M33.13

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Other dermatomyositis without myopathy

    2018 - New Code 2019 2020 2021 2022 2023 Billable/Specific Code
  • M33.13 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM M33.13 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of M33.13 - other international versions of ICD-10 M33.13 may differ.
Applicable To
  • Dermatomyositis NOS
The following code(s) above M33.13 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 M33.13:
  • M00-M99
    2023 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
  • M30-M36
    2023 ICD-10-CM Range M30-M36

    Systemic connective tissue disorders

    Includes
    • autoimmune disease NOS
    • collagen (vascular) disease NOS
    • systemic autoimmune disease
    • systemic collagen (vascular) disease
    Type 1 Excludes
    • autoimmune disease, single organ or single cell-type -code to relevant condition category
    Systemic connective tissue disorders
  • M33.1
    ICD-10-CM Diagnosis Code M33.1

    Other dermatomyositis

      2016 2017 2018 - Revised Code 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Applicable To
    • Adult dermatomyositis
    Other dermatomyositis
ICD-10-CM M33.13 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 545 Connective tissue disorders with mcc
  • 546 Connective tissue disorders with cc
  • 547 Connective tissue disorders without cc/mcc

Convert M33.13 to ICD-9-CM

Code History
  • 2018 (effective 10/1/2017): New code
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to M33.13:
  • Dermatomyositis (acute) (chronic) - see also Dermatopolymyositis
    • specified NEC M33.10
      ICD-10-CM Diagnosis Code M33.10

      Other dermatomyositis, organ involvement unspecified

        2016 2017 2018 - Revised Code 2019 2020 2021 2022 2023 Billable/Specific Code
      • amyopathic M33.13
      • without myopathy M33.13
  • Dermatopolymyositis M33.90
    ICD-10-CM Diagnosis Code M33.90

    Dermatopolymyositis, unspecified, organ involvement unspecified

      2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    • specified NEC M33.10
      ICD-10-CM Diagnosis Code M33.10

      Other dermatomyositis, organ involvement unspecified

        2016 2017 2018 - Revised Code 2019 2020 2021 2022 2023 Billable/Specific Code
      • amyopathic M33.13
      • without myopathy M33.13
  • Poikilodermatomyositis M33.10
    ICD-10-CM Diagnosis Code M33.10

    Other dermatomyositis, organ involvement unspecified

      2016 2017 2018 - Revised Code 2019 2020 2021 2022 2023 Billable/Specific Code
    • amyopathic M33.13
    • without myopathy M33.13

ICD-10-CM Codes Adjacent To M33.13
M33.0 Juvenile dermatomyositis
M33.00 …… organ involvement unspecified
M33.01 …… with respiratory involvement
M33.02 …… with myopathy
M33.03 …… without myopathy
M33.09 …… with other organ involvement
M33.1 Other dermatomyositis
M33.10 …… organ involvement unspecified
M33.11 …… with respiratory involvement
M33.12 …… with myopathy
M33.13 …… without myopathy
M33.19 …… with other organ involvement
M33.2 Polymyositis
M33.20 …… organ involvement unspecified
M33.21 …… with respiratory involvement
M33.22 …… with myopathy
M33.29 …… with other organ involvement
M33.9 Dermatopolymyositis, unspecified
M33.90 …… organ involvement unspecified
M33.91 …… with respiratory involvement
M33.92 …… with myopathy

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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