428.9 HEART FAILURE NOS


Code Information

Diagnosis Code: 428.9

Short Description: Heart failure NOS

Long Description: Heart failure, unspecified

Code Classification:

  • Diseases of the circulatory system (390–459)
    • Other forms of heart disease (420-429)
      • 428 Heart failure
        • 428.9 Heart failure NOS

Code Version: 2015 ICD-9-CM


References to Index of Diseases and Injuries

The code 428.9 has the following ICD-9-CM references to the Index of Diseases and Injuries
  • Asthenia, asthenic 780.79
    • cardiac (see also Failure, heart) 428.9
      • psychogenic 306.2
    • cardiovascular (see also Failure, heart) 428.9
      • psychogenic 306.2
    • heart (see also Failure, heart) 428.9
      • psychogenic 306.2
    • myocardial (see also Failure, heart) 428.9
      • psychogenic 306.2
  • Crisis
    • heart (see also Failure, heart) 428.9
  • Exhaustion, exhaustive (physical NEC) 780.79
    • cardiac (see also Failure, heart) 428.9
    • heart (see also Failure, heart) 428.9
    • myocardium, myocardial (see also Failure, heart) 428.9
  • Failure, failed
    • cardiac (see also Failure, heart) 428.9
      • newborn 779.89
    • cardiorenal (chronic) 428.9
      • hypertensive (see also Hypertension, cardiorenal) 404.93
    • cardiovascular (chronic) 428.9
    • heart (acute) (sudden) 428.9
      • with
        • abortion - see Abortion, by type, with specified complication NEC
        • acute pulmonary edema (see also Failure, ventricular, left) 428.1
          • with congestion (see also Failure, heart) 428.0
        • decompensation (see also Failure, heart) 428.0
        • dilation - see Disease, heart
        • ectopic pregnancy (see also categories 633.0-633.9) 639.8
        • molar pregnancy (see also categories 630-632) 639.8
      • arteriosclerotic 440.9
      • combined left-right sided 428.0
      • combined systolic and diastolic 428.40
        • acute 428.41
        • acute on chronic 428.43
        • chronic 428.42
      • compensated (see also Failure, heart) 428.0
      • complicating
        • abortion - see Abortion, by type, with specified complication NEC
        • delivery (cesarean) (instrumental) 669.4
        • ectopic pregnancy (see also categories 633.0-633.9) 639.8
        • molar pregnancy (see also categories 630-632) 639.8
        • obstetric anesthesia or sedation 668.1
        • surgery 997.1
      • congestive (compensated) (decompensated) (see also Failure, heart) 428.0
        • with rheumatic fever (conditions classifiable to 390)
          • active 391.8
          • inactive or quiescent (with chorea) 398.91
        • fetus or newborn 779.89
        • hypertensive (see also Hypertension, heart) 402.91
          • with renal disease (see also Hypertension, cardiorenal) 404.91
            • with renal failure 404.93
          • benign 402.11
          • malignant 402.01
        • rheumatic (chronic) (inactive) (with chorea) 398.91
          • active or acute 391.8
            • with chorea (Sydenham's) 392.0
      • decompensated (see also Failure, heart) 428.0
      • degenerative (see also Degeneration, myocardial) 429.1
      • diastolic 428.30
        • acute 428.31
        • acute on chronic 428.33
        • chronic 428.32
      • due to presence of (cardiac) prosthesis 429.4
      • fetus or newborn 779.89
      • following
        • abortion 639.8
        • cardiac surgery 429.4
        • ectopic or molar pregnancy 639.8
      • high output NEC 428.9
      • hypertensive (see also Hypertension, heart) 402.91
        • with renal disease (see also Hypertension, cardiorenal) 404.91
          • with renal failure 404.93
        • benign 402.11
        • malignant 402.01
      • left (ventricular) (see also Failure, ventricular, left) 428.1
        • with right-sided failure (see also Failure, heart) 428.0
      • low output (syndrome) NEC 428.9
      • organic - see Disease, heart
      • postoperative (immediate) 997.1
        • long term effect of cardiac surgery 429.4
      • rheumatic (chronic) (congestive) (inactive) 398.91
      • right (secondary to left heart failure, conditions classifiable to 428.1) (ventricular) (see also Failure, heart)� 428.0
      • senile 797
      • specified during or due to a procedure 997.1
        • long-term effect of cardiac surgery 429.4
      • systolic 428.20
        • acute 428.21
        • acute on chronic 428.23
        • chronic 428.22
      • thyrotoxic (see also Thyrotoxicosis) 242.9 [425.7]
      • valvular - see Endocarditis
    • myocardium, myocardial (see also Failure, heart) 428.9
      • chronic (see also Failure, heart) 428.0
      • congestive (see also Failure, heart) 428.0
    • ventricular (see also Failure, heart) 428.9
      • left 428.1
        • with rheumatic fever (conditions classifiable to 390)
          • active 391.8
            • with chorea 392.0
          • inactive or quiescent (with chorea) 398.91
        • hypertensive (see also Hypertension, heart) 402.91
          • benign 402.11
          • malignant 402.01
        • rheumatic (chronic) (inactive) (with chorea) 398.91
          • active or acute 391.8
            • with chorea 392.0
      • right (see also Failure, heart) 428.0
  • Fatigue 780.79
    • myocardium (see also Failure, heart) 428.9
  • Fever 780.60
    • rheumatic (active) (acute) (chronic) (subacute) 390
      • inactive or quiescent with
        • heart conditions (classifiable to 429.3, 429.6, 429.9) 398.99
          • failure (congestive) (conditions classifiable to 428.0, 428.9) 398.91
  • High
    • output failure (cardiac) (see also Failure, heart) 428.9
  • Low
    • output syndrome (cardiac) (see also Failure, heart) 428.9
  • Paralysis, paralytic (complete) (incomplete) 344.9
    • cardiac (see also Failure, heart) 428.9
    • cordis (see also Failure, heart) 428.9
    • heart (see also Failure, heart) 428.9
  • Paresis (see also Paralysis) 344.9
    • heart (see also Failure, heart) 428.9
  • Sudden
    • heart failure (see also Failure, heart) 428.9
  • Syndrome - see also Disease
    • low
      • output (cardiac) (see also Failure, heart) 428.9
  • Weak, weakness (generalized) 780.79
    • heart, cardiac (see also Failure, heart) 428.9
      • congenital 746.9
    • myocardium (see also Failure, heart) 428.9

Crosswalk Information

The code 428.9 converts into the following ICD-10 code(s):
ICD-9 Code ICD-10 Code ICD-10 Description
428.9 Right Arrow I50.9 Heart failure, unspecified
This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code ICD-9 Description
428.0 Congestive heart failure, unspecified
428.1 Left heart failure
428.20 Systolic heart failure, unspecified
428.21 Acute systolic heart failure
428.22 Chronic systolic heart failure
428.23 Acute on chronic systolic heart failure
428.30 Diastolic heart failure, unspecified
428.31 Acute diastolic heart failure
428.32 Chronic diastolic heart failure
428.33 Acute on chronic diastolic heart failure
428.40 Combined systolic and diastolic heart failure, unspecified
428.41 Acute combined systolic and diastolic heart failure
428.42 Chronic combined systolic and diastolic heart failure
428.43 Acute on chronic combined systolic and diastolic heart failure


This page was last updated on: 10/1/2014