Cardiomyopathy in diseases classified elsewhere
- I43 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2025 edition of ICD-10-CM I43 became effective on October 1, 2024.
- This is the American ICD-10-CM version of I43 – other international versions of ICD-10 I43 may differ.
ICD-10-CM Coding Rules
- I43 describes the manifestation of an underlying disease, not the disease itself.
Code First
- underlying disease, such as:
- amyloidosis (E85.-)
- glycogen storage disease (E74.0-)
- gout (M10.0-)
- thyrotoxicosis (E05.0-E05.9-)
Type 1 Excludes
- cardiomyopathy (in):
- coxsackie (virus) (B33.24)
- diphtheria (A36.81)
- sarcoidosis (D86.85)
- tuberculosis (A18.84)
The following code(s) above I43 contain annotation back-references
that may be applicable to I43:
- I00-I99 Diseases of the circulatory system
Approximate Synonyms
- Cardiac amyloidosis
- Cardiomyopathy, metabolic
- Dilated cardiomyopathy associated with connective tissue disorder
- Dilated cardiomyopathy due to connective tissue di
- Dilated cardiomyopathy due to dermatomyositis
- Dilated cardiomyopathy secondary to dermatomyositis
- Dilated cardiomyopathy secondary to malignancy
- Dilated cardiomyopathy, due to malignancy
- Metabolic cardiomyopathy
- Restrictive cardiomyopathy secondary to malignancy
- Restrictive cardiomyopathy, due to malignancy
- Senile cardiac amyloidosis
ICD-10-CM I43 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):
- 314 Other circulatory system diagnoses with mcc
- 315 Other circulatory system diagnoses with cc
- 316 Other circulatory system diagnoses without cc/mcc
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
Convert I43 to ICD-9-CMCode 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
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
- 2025 (effective 10/1/2024): No change
Code annotations containing back-references to I43:
- Use Additional: M1A, M10