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Insomnia, Sleep Apnea & Sleep Health • ICD-10-CM R06.81

Apnea

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-11-02 • ICD-10-CM R06.81 • 8 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

Apnea 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 Apnea?

Apnea—coded clinically as R06.81 across Sleep Disorders guidelines—combines home sleep apnea in Apnea (R06.81: testing (HSAT) or) with structured follow-up of Apnea-Hypopnea Index (AHI) [Apnea R06.81] (< 5 events/hour (R06.81)).

Pathophysiology, Underlying Causes & Clinical Presentation

Apnea (R06.81) alters sleep disorders homeostasis through sympathetic micro-arousals [Apnea R06.81]; clinical remission targets Apnea-Hypopnea Index (AHI) [Apnea R06.81] within < 5 events/hour (R06.81).

Common Symptoms & Clinical Signs

  • • Presentation of Apnea (R06.81): daytime microsleeps, cognitive in Apnea (R06.81: brain fog, or)
  • • Secondary Apnea clinical sign: prolonged sleep-onset latency [Apnea R06.81]
  • • Symptom flares in Apnea correlating with Serum Ferritin (Restless in Apnea (R06.81: Legs)) deviation outside > 75 ng/mL (R06.81)
  • • Functional sleep disorders impact requiring home sleep apnea in Apnea (R06.81: testing (HSAT) or) evaluation (R06.81)

Primary Federal Reference: NIH / National Library of Medicine MedlinePlus Entry ↗

Apnea Diagnostic Classification & Lab Markers

Metric Verified Benchmark Source
ICD-10-CM Diagnostic Code R06.81 WHO / CMS ICD-10-CM Clinical Classification
Clinical Specialty Hub Insomnia, Sleep Apnea & Sleep Health NIH MedlinePlus Health Topics
Diagnostic / Lab Marker: Serum Ferritin (Restless in Apnea (R06.81: Legs)) > 75 ng/mL (R06.81) Clinical Reference Target Range
Diagnostic / Lab Marker: Apnea-Hypopnea Index (AHI) [Apnea R06.81] < 5 events/hour (R06.81) Clinical Reference Target Range
Diagnostic / Lab Marker: Insomnia Severity Index in Apnea (R06.81: (ISI)) < 7 (R06.81) Clinical Reference Target Range
Marcus Sterling (AI Healthcare Price Auditor) & Dr. Vance

FDA-Monographed Medications & Public Cash Price Reference for Apnea

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Treatment selection for Apnea 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 (Apnea)

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Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Association between obstructive sleep apnea and male serum: What a 1,823-Participant Study Found

Obstructive sleep apnea is inversely associated with male serum testosterone levels, independent of body mass index and age.

Andrology • 2022-02-15 • Meta-Analysis
N = 1,823 94/100 PMID 34536053 ↗
New Insights on Association between obstructive sleep apnea and metabolic: What a 2,053-Participant Study Found

Ten studies were included in the analysis which included 2053 patients.

Clinical and investigative medicine. Medecine clinique et experimentale • 2016-10-14 • Meta-Analysis
N = 2,053 94/100 PMID 27805899 ↗
New Insights on Bariatric surgery and obstructive sleep: What a 2,310-Participant Study Found

Our results suggest that bariatric surgeries are effective in reducing obesity among patients with OSA in addition to OSA severity measures.

Sleep & breathing = Schlaf & Atmung • 2023-12-15 • Meta-Analysis
N = 2,310 94/100 PMID 37145243 ↗
New Insights on Relationship between obstructive sleep apnea hypopnea syndrome and chronic acid: What a 2,699-Participant Study Found

The meta-analysis showed that there was a significant correlation between obstructive sleep apnea hypopnea syndrome and chronic acid reflux.

Sleep & breathing = Schlaf & Atmung • 2019-06-15 • Meta-Analysis
N = 2,699 94/100 PMID 29987514 ↗
New Insights on Cognitive Effects of Treating Obstructive Sleep: What a 1,926-Participant Study Found

Our meta-analysis indicates that CPAP treatment can partially improve cognitive impairment in the population of severe OSA.

Journal of Alzheimer's disease : JAD • 2020-01-15 • Meta-Analysis
N = 1,926 94/100 PMID 32310179 ↗
Zero-PHI Patient Support & Cohort Discussions

Apnea Patient Community & “People Like Me” Threads

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