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Bacterial, Viral & Fungal Infections • ICD-10-CM J18.9

Pneumonia, unspecified organism

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-11-02 • ICD-10-CM J18.9 • 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

Pneumonia, unspecified organism Key Takeaways

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

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What Is Pneumonia, unspecified organism?

Cataloged under federal diagnostic code J18.9 in Infections & Antivirals, Pneumonia, unspecified organism requires sepsis/severity red-flag triage [Pneumonia, unspecified organism J18.9] so specialists can calibrate treatment intensity against Targeted PCR / in Pneumonia, unspecified organism (J18.9: Culture & Sensitivity) benchmarks.

Pathophysiology, Underlying Causes & Clinical Presentation

Tissue-level etiology in Pneumonia, unspecified organism (J18.9) features localized inflammatory exudate [Pneumonia, unspecified organism J18.9]. therapeutic stabilization in infections & antivirals is verified against Complete Blood Count in Pneumonia, unspecified organism (J18.9: (WBC & Differential)).

Common Symptoms & Clinical Signs

  • • Presentation of Pneumonia, unspecified organism (J18.9): sore throat, productive in Pneumonia, unspecified organism (J18.9: cough, sinus/ear pain,)
  • • Secondary Pneumonia, unspecified organism clinical sign: painful vesicular rash in Pneumonia, unspecified organism (J18.9: in a dermatomal)
  • • Symptom flares in Pneumonia, unspecified organism correlating with Targeted PCR / in Pneumonia, unspecified organism (J18.9: Culture & Sensitivity) deviation outside Pathogen clearance / negative test (J18.9)
  • • Functional infections & antivirals impact requiring sepsis/severity red-flag triage [Pneumonia, unspecified organism J18.9] evaluation (J18.9)

Pneumonia, unspecified organism Diagnostic Classification & Lab Markers

Metric Verified Benchmark Source
ICD-10-CM Diagnostic Code J18.9 WHO / CMS ICD-10-CM Clinical Classification
Clinical Specialty Hub Bacterial, Viral & Fungal Infections NLM Clinical Tables
Diagnostic / Lab Marker: Targeted PCR / in Pneumonia, unspecified organism (J18.9: Culture & Sensitivity) Pathogen clearance / negative test (J18.9) Clinical Reference Target Range
Diagnostic / Lab Marker: Complete Blood Count in Pneumonia, unspecified organism (J18.9: (WBC & Differential)) WBC 4.0 – 10.0 x10^3/uL (J18.9) Clinical Reference Target Range
Diagnostic / Lab Marker: C-Reactive Protein / in Pneumonia, unspecified organism (J18.9: Procalcitonin) Resolution to baseline (J18.9) Clinical Reference Target Range
Marcus Sterling (AI Healthcare Price Auditor) & Dr. Vance

FDA-Monographed Medications & Public Cash Price Reference for Pneumonia, unspecified organism

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Medication Pharmacologic Class Patient Worth-It CMS NADAC / Unit Typical Lowest Cash
Ceftriaxone Sodium Ceftriaxone Sodium Generic • RxCUI 1665021 Cephalosporin Antibacterial 76% $0.9238 $ 45.91 /mo
Dr. Lin (AI PubMed Clinical Trial Lead)

Peer-Reviewed Human Clinical Trials & Meta-Analyses (Pneumonia, unspecified organism)

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Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Endotypes of Pseudomonas aeruginosa Infection in Bronchiectasis Are Associated: What a 377-Participant Study Found

Aeruginosa have heterogeneous microbiota and inflammatory profiles, influencing antibiotic treatment responses in bronchiectasis.

American journal of respiratory and critical care medicine • 2025-08-15 • Phase III Randomized Trial
N = 377 93/100 PMID 40664229 ↗
New Insights on Etrasimod for the Treatment of Ulcerative Colitis: Analysis of Infection Events: What a 787-Participant Study Found

Patients receiving etrasimod demonstrated no increased risk of infection.

Journal of Crohn's & colitis • 2024-10-15 • Phase III Randomized Trial
N = 787 93/100 PMID 38700040 ↗
Can This Approach Help? Inside the Latest Research on Influence of anti-Spike protein antibody levels on tocilizumab efficacy in

Our findings suggest that using IL-6 inhibitors in severe COVID-19 patients with low S-spike antibody titers may improve clinical outcomes.

BMC infectious diseases • 2025-05-08 • Phase III Randomized Trial
N = 19 88/100 PMID 40340657 ↗
Can This Approach Help? Inside the Latest Research on Iron serum levels and iron homeostasis parameters in patients with nosocomial

Clinicaltrials.gov registration: NCT03032380.

European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology • 2022-03-15 • Phase III Randomized Trial
Multi-cohort 88/100 PMID 35025025 ↗
Can This Approach Help? Inside the Latest Research on Outcomes in participants with failure of initial antibacterial therapy for

This post hoc analysis further supports the previously demonstrated lower ACM rate for ceftolozane/tazobactam versus meropenem among participants who were failing prior therapy, despite the lack of significant differences in...

Critical care (London, England) • 2022-12-01 • Phase III Randomized Trial
N = 53 88/100 PMID 36457059 ↗
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