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Dermatology: Acne, Eczema, Psoriasis & Rosacea • ICD-10-CM L21.8

Other seborrheic dermatitis

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-11-02 • ICD-10-CM L21.8 • 7 Linked .gov / PubMed Citations • Governance: Dr. Priya Nair, MD, FAAD (NPI #1295730425)
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

Other seborrheic dermatitis Key Takeaways

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

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What Is Other seborrheic dermatitis?

Other seborrheic dermatitis—coded clinically as L21.8 across Skin & Dermatology guidelines—combines or targeted biologics [Other seborrheic dermatitis L21.8] with structured follow-up of Fasting Lipids & in Other seborrheic dermatitis (L21.8: ALT (if systemic) (Within baseline reference limits (L21.8)).

Pathophysiology, Underlying Causes & Clinical Presentation

Biological expression of Other seborrheic dermatitis (L21.8, Skin & Dermatology) reflects cutaneous immune skewing in Other seborrheic dermatitis (L21.8: (Th2/IL-4/IL-13 in atopic). longitudinal control is benchmarked via Affected Body Surface in Other seborrheic dermatitis (L21.8: Area (BSA /).

Common Symptoms & Clinical Signs

  • • Presentation of Other seborrheic dermatitis (L21.8): compromised epidermal barrier in Other seborrheic dermatitis (L21.8: with dryness, fissuring,)
  • • Secondary Other seborrheic dermatitis clinical sign: post-inflammatory hyperpigmentation, facial in Other seborrheic dermatitis (L21.8: flushing, or pitted)
  • • Symptom flares in Other seborrheic dermatitis correlating with Affected Body Surface in Other seborrheic dermatitis (L21.8: Area (BSA /) deviation outside Clear or Almost Clear (IGA 0–1) (L21.8)
  • • Functional skin & dermatology impact requiring or targeted biologics [Other seborrheic dermatitis L21.8] evaluation (L21.8)

Other seborrheic dermatitis Diagnostic Classification & Lab Markers

Metric Verified Benchmark Source
ICD-10-CM Diagnostic Code L21.8 WHO / CMS ICD-10-CM Clinical Classification
Clinical Specialty Hub Dermatology: Acne, Eczema, Psoriasis & Rosacea NLM Clinical Tables
Diagnostic / Lab Marker: Affected Body Surface in Other seborrheic dermatitis (L21.8: Area (BSA /) Clear or Almost Clear (IGA 0–1) (L21.8) Clinical Reference Target Range
Diagnostic / Lab Marker: Fasting Lipids & in Other seborrheic dermatitis (L21.8: ALT (if systemic) Within baseline reference limits (L21.8) Clinical Reference Target Range
Diagnostic / Lab Marker: 25-Hydroxy Vitamin D in Other seborrheic dermatitis (L21.8: & hs-CRP) 25(OH)D 40–65 ng/mL (L21.8) Clinical Reference Target Range
Marcus Sterling (AI Healthcare Price Auditor) & Dr. Vance

FDA-Monographed Medications & Public Cash Price Reference for Other seborrheic dermatitis

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Treatment selection for Other seborrheic dermatitis 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 (Other seborrheic dermatitis)

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Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Valsartan vs. other angiotensin II receptor blockers in the treatment of high: What a 13,110-Participant Study Found

Valsartan administered at 160 or 320 mg is more effective at lowering BP than losartan 100 mg and shows comparable efficacy to other ARBs in patients with essential high blood pressure.

International journal of clinical practice • 2009-05-15 • Meta-Analysis
N = 13,110 99/100 PMID 19392925 ↗
New Insights on Efficacy comparison of monotherapies and combination therapies for androgenetic: What a 3,133-Participant Study Found

In recent years, combination therapies are showing significant promise as potential therapies.

Dermatologic therapy • 2022-03-15 • Meta-Analysis
N = 3,133 99/100 PMID 34897933 ↗
New Insights on Combination Therapy in Androgenetic hair loss: A Network Meta-Analysis of: What a 3,012-Participant Study Found

Based on the current studies, we found that the combination of Minoxidil with spironolactone, PRPF, flutamide, and finasteride may offer better treatment outcomes for patients with androgenetic hair loss.

Aesthetic plastic surgery • 2026-07-15 • Meta-Analysis
N = 3,012 99/100 PMID 42168420 ↗
New Insights on Safety profile of telmisartan as single-drug treatment or combined with: What a 8,023-Participant Study Found

The consolidated data show that telmisartan +/- HCTZ are well tolerated in patients of all ages and have placebo-like tolerabilities.

Blood pressure. Supplement • 2008-06-15 • Randomized Controlled Trial
N = 8,023 96/100 PMID 18705533 ↗
New Insights on Telmisartan and amlodipine single-pill combinations vs amlodipine single-drug: What a 1,097-Participant Study Found

Superior BP reductions were also seen with T40-T80/A5 vs A10, with BP goal rates at least as high as with A10; however, there was significantly more peripheral edema with A10 (27.2% vs 4.3% for pooled.

Journal of clinical hypertension (Greenwich, Conn.) • 2011-07-15 • Randomized Controlled Trial
N = 1,097 96/100 PMID 21762357 ↗
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