Cardiomyopathy I42-

Cardiomyopathy I42-

Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • pre-existing cardiomyopathy complicating pregnancy and puerperium (
    ICD-10-CM Diagnosis Code O99.4

    Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    Type 1 Excludes
    • peripartum cardiomyopathy (O90.3)
    Type 2 Excludes
    • hypertensive disorders (O10-O16)
    • obstetric embolism (O88.-)
    • venous complications and cerebrovenous sinus thrombosis in labor, childbirth and the puerperium (O87.-)
    • venous complications and cerebrovenous sinus thrombosis in pregnancy (O22.-)
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (I42) and the excluded code together.
  • ischemic cardiomyopathy (
    ICD-10-CM Diagnosis Code I25.5

    Ischemic cardiomyopathy

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Type 2 Excludes
  • peripartum cardiomyopathy (
    ICD-10-CM Diagnosis Code O90.3

    Peripartum cardiomyopathy

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Maternity Dx (12-55 years)
    Applicable To
    • Conditions in I42.- arising during pregnancy and the puerperium
    Type 1 Excludes
    • pre-existing heart disease complicating pregnancy and the puerperium (O99.4-)
  • ventricular hypertrophy (
    ICD-10-CM Diagnosis Code I51.7


      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Cardiac dilatation
    • Cardiac hypertrophy
    • Ventricular dilatation
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • myocardiopathy
Clinical Information