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Insomnia, Sleep Apnea & Sleep Health • ICD-10-CM F51.3

Sleepwalking [somnambulism]

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-11-02 • ICD-10-CM F51.3 • 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

Sleepwalking [somnambulism] Key Takeaways

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

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What Is Sleepwalking [somnambulism]?

Within Insomnia, Sleep Apnea & Sleep Health practice, Sleepwalking [somnambulism] (ICD-10 F51.3) is stratified through home sleep apnea in Sleepwalking [somnambulism] (F51.3: testing (HSAT) or), pairing targeted symptom control with longitudinal Insomnia Severity Index in Sleepwalking [somnambulism] (F51.3: (ISI)) surveillance.

Pathophysiology, Underlying Causes & Clinical Presentation

Sleepwalking [somnambulism] (F51.3) alters sleep disorders homeostasis through suprachiasmatic nucleus circadian in Sleepwalking [somnambulism] (F51.3: phase misalignment); clinical remission targets Insomnia Severity Index in Sleepwalking [somnambulism] (F51.3: (ISI)) within < 7 (F51.3).

Common Symptoms & Clinical Signs

  • • Presentation of Sleepwalking [somnambulism] (F51.3): prolonged sleep-onset latency [Sleepwalking [somnambulism] F51.3]
  • • Secondary Sleepwalking [somnambulism] clinical sign: unrefreshing morning waking in Sleepwalking [somnambulism] (F51.3: despite adequate hours)
  • • Symptom flares in Sleepwalking [somnambulism] correlating with Apnea-Hypopnea Index (AHI) [Sleepwalking [somnambulism] F51.3] deviation outside < 5 events/hour (F51.3)
  • • Functional sleep disorders impact requiring home sleep apnea in Sleepwalking [somnambulism] (F51.3: testing (HSAT) or) evaluation (F51.3)

Sleepwalking [somnambulism] Diagnostic Classification & Lab Markers

Metric Verified Benchmark Source
ICD-10-CM Diagnostic Code F51.3 WHO / CMS ICD-10-CM Clinical Classification
Clinical Specialty Hub Insomnia, Sleep Apnea & Sleep Health NLM Clinical Tables
Diagnostic / Lab Marker: Apnea-Hypopnea Index (AHI) [Sleepwalking [somnambulism] F51.3] < 5 events/hour (F51.3) Clinical Reference Target Range
Diagnostic / Lab Marker: Insomnia Severity Index in Sleepwalking [somnambulism] (F51.3: (ISI)) < 7 (F51.3) Clinical Reference Target Range
Diagnostic / Lab Marker: Nocturnal Oxygen Saturation in Sleepwalking [somnambulism] (F51.3: (SpO2)) >= 94% nadir > 90% (F51.3) Clinical Reference Target Range
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FDA-Monographed Medications & Public Cash Price Reference for Sleepwalking [somnambulism]

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Treatment selection for Sleepwalking [somnambulism] depends on clinical severity, diagnostic lab results, and medical history. Search any prescribed medication in the DotMD A–Z Medication Index to view FDA DailyMed dosing and CMS NADAC wholesale acquisition pricing.

Dr. Lin (AI PubMed Clinical Trial Lead)

Peer-Reviewed Human Clinical Trials & Meta-Analyses (Sleepwalking [somnambulism])

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Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Association of epicardial adipose tissues with obstructive sleep apnea and its: What a 1,178-Participant Study Found

EAT thickness was shown to be higher in patients with OSA than in patients with non-OSA measured by echocardiography.

Nutrition, metabolism, and cardiovascular diseases : NMCD • 2020-06-25 • Meta-Analysis
N = 1,178 94/100 PMID 32446869 ↗
New Insights on Remibrutinib impact on disease control, sleep, and quality of life: Analysis of: What a 306-Participant Study Found

Remibrutinib exhibited fast improvements in disease control, sleep, and QoL in REMIX-1 and REMIX-2, supporting remibrutinib as a valuable therapeutic option for CSU.

Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology • 2026-09-15 • Phase III Randomized Trial
N = 306 93/100 PMID 42297099 ↗
Can This Approach Help? Inside the Latest Research on Melatonin decreases daytime challenging behaviour in persons with intellectual

Melatonin treatment in persons with ID and chronic trouble sleeping decreases daytime challenging behaviour, probably by improving sleep maintenance or by improving circadian melatonin rhythmicity.

Journal of intellectual disability research : JIDR • 2010-01-01 • Randomized Controlled Trial
Multi-cohort 88/100 PMID 19888921 ↗
Can This Approach Help? Inside the Latest Research on Melatonin for chronic sleep onset trouble sleeping in children: a randomized

The results show that melatonin, 5 mg at 6 PM, was relatively safe to take in the short term and significantly more effective than placebo in advancing sleep onset and dim light melatonin onset and increasing sleep duration in...

Journal of child neurology • 2001-02-15 • Randomized Controlled Trial
N = 33 88/100 PMID 11292231 ↗
Can This Approach Help? Inside the Latest Research on Effect of lemborexant on sleep architecture in participants with trouble sleeping

LEM significantly increased TST in participants with trouble sleeping and mild OSA.

Sleep medicine • 2025-03-15 • Phase III Randomized Trial
Multi-cohort 88/100 PMID 39879708 ↗
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