Referral Map
Every specialty below already exists on the platform. The patients are there. Canary adds the cross-sell at the moment of highest clinical intent.
Highest volume + strongest clinical link to environmental triggers
| Specialty | Environmental Triggers | Platform Volume | Post-Visit Nudge |
|---|---|---|---|
| Allergist | Mold, dust mites, pet dander, VOCs, cockroach allergen | High | “Your allergy test showed sensitivity. Want to find out if your home is the source?” |
| Primary Care | Mold, IAQ, lead in water, radon, VOCs | Very High | “Recurring respiratory symptoms? A home environment test can rule out mold, VOCs, and air quality issues.” |
| Pulmonologist | Mold, PM2.5, VOCs, humidity, radon | Mod–High | “Asthma symptoms persist despite treatment? An indoor air quality scan can identify home triggers.” |
| Pediatrician | Lead, mold, dust mites, VOCs, cockroach allergen | High | “Your child’s asthma or allergies may have a home trigger. Test for mold, lead, and allergens.” |
| OB-GYN | Lead in water, PFAS, endocrine disruptors, VOCs | High | “Pregnant or planning? Lead and PFAS in your water can affect fetal development. A home water test takes 10 minutes.” |
Clear clinical link, moderate-to-high volume
| Specialty | Environmental Triggers | Platform Volume | Post-Visit Nudge |
|---|---|---|---|
| ENT | Mold spores, dust, VOCs, humidity | Mod–High | “Chronic sinus issues that keep coming back? Test your home for mold and air quality.” |
| Dermatologist | Dust mites, mold, water quality, VOCs | High | “Eczema that won’t clear up? Your water and air quality could be the cause.” |
| Rheumatologist | Mold mycotoxins, heavy metals, VOCs | Moderate | “Environmental triggers may be making inflammation worse. Identify hidden exposures.” |
| Sleep Medicine | Bedroom air quality, mold, dust mites, VOCs | Low–Mod | “Trouble sleeping? Poor bedroom air quality can disrupt sleep.” |
| Orthopedist / Sports Medicine | Home office ergonomics, repetitive strain, musculoskeletal risk | Mod–High | “Back pain from your home office? An ergonomic assessment can identify the setup issues causing strain.” |
Niche volume but high per-patient conversion potential
| Specialty | Notes |
|---|---|
| Naturopathic / Integrative | Low platform volume but extremely high conversion — environmental testing aligns with root-cause protocols |
| Psychiatrist | High platform traffic; emerging research links mold mycotoxins to neuropsychiatric symptoms (brain fog, anxiety) |
| Ophthalmologist | Chronic dry eye and irritation linked to IAQ; moderate traffic but weak standalone link |
| Oncologist | Radon is 2nd leading cause of lung cancer; immunocompromised patients need clean home environments |
Key insight: The Tier 1 specialties alone represent millions of annual platform bookings. At a conservative 2% nudge-to-booking conversion, that’s tens of thousands of environmental test bookings per year — from patients who are already on the platform.
ICD-10 Codes
Every LMN requires a diagnosis code. These are the most common codes that justify environmental testing — all routine in allergy, pulmonary, and pediatric practice.
| ICD-10 | Description | Environmental Test |
|---|---|---|
| J45.x | Asthma (all subtypes) | Mold, IAQ, allergen mapping |
| J30.x | Allergic rhinitis | Mold, dust mites, allergen mapping |
| J67.x | Hypersensitivity pneumonitis | Mold (direct causal) |
| J32.x | Chronic sinusitis | Mold, IAQ |
| L20.x | Atopic dermatitis / eczema | Allergens, water quality |
| T56.0 | Lead poisoning / exposure | Water quality, lead paint |
| Z77.011 | Contact with lead | Water testing, paint testing |
| Z77.110 | Contact with mold | Mold assessment |
| R06.x | Abnormalities of breathing | IAQ, mold, VOCs |
| R51 | Headache (chronic/unexplained) | VOCs, CO, IAQ |