- I42.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM I42.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of I42.9 – other international versions of ICD-10 I42.9 may differ.
ICD-10-CM I42.9 is grouped within Diagnostic Related Group(s):
- 314 Other circulatory system diagnoses with mcc
- 315 Other circulatory system diagnoses with cc
- 316 Other circulatory system diagnoses without cc/mcc
Applicable To
- Cardiomyopathy (primary) (secondary) NOS
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 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
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to I42.9:
- secondary > Cardiomyopathy (familial) (idiopathic) I42.9
- idiopathic > Cardiopathy I51.9
- primary (idiopathic) > myocardium, myocardial I51.5
- secondary > Myocardiopathy (congestive) (constrictive) (familial) (hypertrophic nonobstructive) (idiopathic) (infiltrative) (obstructive) (primary) (restrictive) (sporadic) I42.9