ICD-10-CM > I00-I99 > I30-I5A > I50 > I50.9 I50.9 Heart failure, unspecified Billable/Specific Copy Code Copy Description Applicable To Cardiac, heart or myocardial failure NOSCongestive heart diseaseCongestive heart failure NOS Type 2 Excludes fluid overload unrelated to congestive heart failure (E87.70)