Specific code 2011 ICD-9-CM Diagnosis Code 428.9
Heart failure unspecified
  • Short description: Heart failure NOS.
  • ICD-9-CM 428.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 428.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2011 version of ICD-9-CM 428.9.
  • More recent version(s) of ICD-9-CM 428.9: 2012 2013 2014.
Disease Synonyms
  • Cardiac failure due to OB anesthesia in pregnancy
  • Cardiac failure due to obstetric anesthesia in pregnancy
  • Heart failure, high output
  • High output heart failure
  • Hypertensive heart AND chronic kidney disease stage 2 with congestive heart failure
  • Hypertensive heart AND chronic kidney disease stage 3 with congestive heart failure
  • Hypertensive heart and CKD, stage 2 (GFR 60-89), w CHF
  • Hypertensive heart and CKD, stage 3 (GFR 30-59), w CHF
  • Hypertensive kidney and heart disease
  • Low cardiac output syndrome
Applies To
  • Cardiac failure NOS
  • Heart failure NOS
  • Myocardial failure NOS
  • Weak heart
Convert to ICD-10-CM: 428.9 converts approximately to:
  • 2014 ICD-10-CM I50.9 Heart failure, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 428.9:
  • Asthenia, asthenic 780.79
    • cardiac (see also Failure, heart) 428.9
    • cardiovascular (see also Failure, heart) 428.9
    • heart (see also Failure, heart) 428.9
    • myocardial (see also Failure, heart) 428.9
  • 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
    • 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
      • 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)
        • fetus or newborn 779.89
        • hypertensive (see also Hypertension, heart) 402.91
        • 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
      • due to presence of (cardiac) prosthesis 429.4
      • fetus or newborn 779.89
      • following
      • high output NEC 428.9
      • hypertensive (see also Hypertension, heart) 402.91
      • 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
      • 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)
        • hypertensive (see also Hypertension, heart) 402.91
        • rheumatic (chronic) (inactive) (with chorea) 398.91
      • right (see also Failure, heart) 428.0
  • Fatigue 780.79
    • myocardium (see also Failure, heart) 428.9
  • 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
      • atmospheric pressure 993.2
      • back 724.2
      • output (cardiac) (see also Failure, heart) 428.9
  • Weak, weakness (generalized) 780.79
    • heart, cardiac (see also Failure, heart) 428.9
    • myocardium (see also Failure, heart) 428.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 428.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.