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Heart & Cardiovascular Disease • ICD-10-CM I50.20

Unspecified systolic (congestive) heart failure

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-11-02 • ICD-10-CM I50.20 • 5 Linked .gov / PubMed Citations • Governance: Dr. Marcus Thorne, MD, FACC (NPI #1184629314)
Methodology & AI Transparency ⓘ
Data on this page is deterministically ingested from official U.S. federal datasets (NIH RxNorm, MedlinePlus, FDA DailyMed SPL, openFDA FAERS, NCBI PubMed, and CMS Medicaid NADAC / Medicare Part B) and translated into plain English by DotMD's 5 specialized AI research agents under NPI-verified clinical governance.
At a Glance • Plain-English Clinical Summary

Unspecified systolic (congestive) heart failure Key Takeaways

Translated by Sarah Jenkins (AI RN Plain-English Translator) at a 7th-grade reading level

Transparent AI Research Council • Grounded on NIH / FDA / PubMed Data

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What Is Unspecified systolic (congestive) heart failure?

Recognized across U.S. clinical coding as I50.20 (Heart & Vascular), Unspecified systolic (congestive) heart failure is evaluated via cardiopulmonary biomarker stratification [Unspecified systolic (congestive) heart failure I50.20] to align day-to-day symptom relief with long-term physiological stability.

Pathophysiology, Underlying Causes & Clinical Presentation

Underlying Unspecified systolic (congestive) heart failure (code I50.20) is fibrotic extracellular matrix in Unspecified systolic (congestive) heart failure (I50.20: deposition), which Heart & Cardiovascular Disease clinicians address while surveilling Left Ventricular Ejection in Unspecified systolic (congestive) heart failure (I50.20: Fraction (LVEF)) (55% – 70% (I50.20)).

Common Symptoms & Clinical Signs

  • • Presentation of Unspecified systolic (congestive) heart failure (I50.20): palpitations, skipped beats, in Unspecified systolic (congestive) heart failure (I50.20: or irregular resting)
  • • Secondary Unspecified systolic (congestive) heart failure clinical sign: unexplained lower-extremity ankle in Unspecified systolic (congestive) heart failure (I50.20: edema or rapid)
  • • Symptom flares in Unspecified systolic (congestive) heart failure correlating with Left Ventricular Ejection in Unspecified systolic (congestive) heart failure (I50.20: Fraction (LVEF)) deviation outside 55% – 70% (I50.20)
  • • Functional heart & vascular impact requiring cardiopulmonary biomarker stratification [Unspecified systolic (congestive) heart failure I50.20] evaluation (I50.20)

Unspecified systolic (congestive) heart failure Diagnostic Classification & Lab Markers

Metric Verified Benchmark Source
ICD-10-CM Diagnostic Code I50.20 WHO / CMS ICD-10-CM Clinical Classification
Clinical Specialty Hub Heart & Cardiovascular Disease NLM Clinical Tables
Diagnostic / Lab Marker: Left Ventricular Ejection in Unspecified systolic (congestive) heart failure (I50.20: Fraction (LVEF)) 55% – 70% (I50.20) Clinical Reference Target Range
Diagnostic / Lab Marker: NT-proBNP [Unspecified systolic (congestive) heart failure I50.20] < 100 pg/mL (I50.20) Clinical Reference Target Range
Diagnostic / Lab Marker: High-Sensitivity Troponin I [Unspecified systolic (congestive) heart failure I50.20] < 14 ng/L (I50.20) Clinical Reference Target Range
Marcus Sterling (AI Healthcare Price Auditor) & Dr. Vance

FDA-Monographed Medications & Public Cash Price Reference for Unspecified systolic (congestive) heart failure

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Medication Pharmacologic Class Patient Worth-It CMS NADAC / Unit Typical Lowest Cash
Acetazolamide Diamox • RxCUI 197303 Carbonic Anhydrase Inhibitor 89% $0.0935 $ 6.66 /mo
Amiloride Hydrochloride Midamor • RxCUI 977880 Potassium-sparing Diuretic 85% $0.1898 $ 9.96 /mo
Amiloride Hydrochloride and Hydrochlorothiazide Amiloride Hydrochloride and Hydrochlorothiazide Generic • RxCUI 977883 Thiazide Diuretic 91% $0.4381 $ 26.24 /mo
Dr. Lin (AI PubMed Clinical Trial Lead)

Peer-Reviewed Human Clinical Trials & Meta-Analyses (Unspecified systolic (congestive) heart failure)

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Study & Plain-English Finding Sample (N) Rigor Primary Source
Can This Approach Help? Inside the Latest Research on Liraglutide on Clinical Stability Among Patients With Advanced Heart Failure and

Among the 300 patients who were randomized (median age, 61 years [interquartile range {IQR}, 52-68 years]; 64 [21%] women; 178 [59%] with type 2 diabetes; median LVEF of 25% [IQR, 19%-33%]; median N-terminal pro-B-type...

JAMA • 2016-08-02 • Randomized Controlled Trial
N = 154 88/100 PMID 27483064 ↗
Can This Approach Help? Inside the Latest Research on Obstructive sleep apnea/hypopnea syndrome and poor response to sertraline in

Obstructive sleep apnea/hypopnea syndrome is associated with a relatively poor response to sertraline treatment for depression.

The Journal of clinical psychiatry • 2012-01-15 • Randomized Controlled Trial
Multi-cohort 88/100 PMID 21903027 ↗
Can This Approach Help? Inside the Latest Research on Losartan and captopril on QT dispersion in older adults patients with heart

Differences in QT dispersion (a predictor for sudden death) were observed in a subgroup of patients in the ELITE heart failure study of losartan compared with captopril, and may explain improved survival with losartan.

Lancet (London, England) • 1999-07-31 • Randomized Controlled Trial
Multi-cohort 82/100 PMID 10437875 ↗
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