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Depression, Bipolar & Mood Disorders • ICD-10-CM F33.1

Major depressive disorder, recurrent, moderate

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-11-02 • ICD-10-CM F33.1 • 7 Linked .gov / PubMed Citations • Governance: Dr. Hannah Lindqvist, MD, PhD (NPI #1457952647)
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

Major depressive disorder, recurrent, moderate Key Takeaways

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

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What Is Major depressive disorder, recurrent, moderate?

Physicians managing Major depressive disorder, recurrent, moderate (F33.1; Depression, Bipolar & Mood Disorders) utilize sleep-wake rhythm assessment [Major depressive disorder, recurrent, moderate F33.1] and objective PHQ-9 Symptom Severity in Major depressive disorder, recurrent, moderate (F33.1: Score) targets (< 4 (clinical remission) (F33.1)) to prevent progression and functional morbidity.

Pathophysiology, Underlying Causes & Clinical Presentation

Tissue-level etiology in Major depressive disorder, recurrent, moderate (F33.1) features norepinephrine [Major depressive disorder, recurrent, moderate F33.1]. therapeutic stabilization in depression & mood is verified against TSH & Free in Major depressive disorder, recurrent, moderate (F33.1: T4 Rule-Out).

Common Symptoms & Clinical Signs

  • • Presentation of Major depressive disorder, recurrent, moderate (F33.1): loss of interest in Major depressive disorder, recurrent, moderate (F33.1: or pleasure in)
  • • Secondary Major depressive disorder, recurrent, moderate clinical sign: persistent low mood, in Major depressive disorder, recurrent, moderate (F33.1: emotional flatness, or)
  • • Symptom flares in Major depressive disorder, recurrent, moderate correlating with PHQ-9 Symptom Severity in Major depressive disorder, recurrent, moderate (F33.1: Score) deviation outside < 4 (clinical remission) (F33.1)
  • • Functional depression & mood impact requiring sleep-wake rhythm assessment [Major depressive disorder, recurrent, moderate F33.1] evaluation (F33.1)

Major depressive disorder, recurrent, moderate Diagnostic Classification & Lab Markers

Metric Verified Benchmark Source
ICD-10-CM Diagnostic Code F33.1 WHO / CMS ICD-10-CM Clinical Classification
Clinical Specialty Hub Depression, Bipolar & Mood Disorders NLM Clinical Tables
Diagnostic / Lab Marker: PHQ-9 Symptom Severity in Major depressive disorder, recurrent, moderate (F33.1: Score) < 4 (clinical remission) (F33.1) Clinical Reference Target Range
Diagnostic / Lab Marker: TSH & Free in Major depressive disorder, recurrent, moderate (F33.1: T4 Rule-Out) TSH 0.8 – 2.5 mIU/L (F33.1) Clinical Reference Target Range
Diagnostic / Lab Marker: Serum Vitamin D in Major depressive disorder, recurrent, moderate (F33.1: & RBC Folate) 25(OH)D 40 – 65 ng/mL (F33.1) Clinical Reference Target Range
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FDA-Monographed Medications & Public Cash Price Reference for Major depressive disorder, recurrent, moderate

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Medication Pharmacologic Class Patient Worth-It CMS NADAC / Unit Typical Lowest Cash
Hemin Panhematin • RxCUI 1926452 FDA Prescription Therapeutic Agent 81% $1.0300 $ 50.22 /mo
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Peer-Reviewed Human Clinical Trials & Meta-Analyses (Major depressive disorder, recurrent, moderate)

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Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Meta-Analysis: Dose-Response Relationship of Selective Serotonin Reuptake: What a 10,039-Participant Study Found

Higher doses of SSRIs appear slightly more effective in depression.

The American journal of psychiatry • 2016-02-01 • Meta-Analysis
N = 10,039 99/100 PMID 26552940 ↗
New Insights on Pharmacological and non-pharmacological treatments for depression in: What a 10,991-Participant Study Found

Herbal medicine and mirtazapine had no significant difference in overall risk of side effects compared with placebo.

Psychiatry research • 2019-11-15 • Meta-Analysis
N = 10,991 99/100 PMID 31627074 ↗
New Insights on Antidepressants for the treatment of adults with depression in the maintenance: What a 9,384-Participant Study Found

Compared to placebo, venlafaxine was associated with a lower incidence of dizziness, while desvenlafaxine, sertraline, and vortioxetine were associated with a higher incidence of nausea/vomiting.

Molecular psychiatry • 2023-01-15 • Meta-Analysis
N = 9,384 99/100 PMID 36253442 ↗
New Insights on Modeling the efficacy of a novel antidepressant zuranolone for: What a 8,735-Participant Study Found

Primary side effects related to zuranolone included somnolence, headache, dizziness, and sedation, with no severe safety signals observed.

Journal of affective disorders • 2026-01-01 • Meta-Analysis
N = 8,735 99/100 PMID 40876640 ↗
New Insights on Major outcomes in high-risk hypertensive patients randomized to: What a 9,048-Participant Study Found

Thiazide-type diuretics are superior in preventing 1 or more major forms of CVD and are less expensive.

JAMA • 2002-12-18 • Randomized Controlled Trial
N = 9,048 96/100 PMID 12479763 ↗
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