How VA Rates Mold Illness and Mold Exposure
The VA rates mold-related illness based on the specific respiratory or systemic condition that the mold exposure caused, not the exposure itself. VA assigns disability ratings under the diagnostic codes that best match your residual conditions — such as rhinitis, sinusitis, asthma, or pulmonary fibrosis. The ICD-10 code most commonly used for chemical-induced respiratory illness from mold is J68.9 (respiratory conditions due to unspecified chemicals, gases, fumes, and vapors).
Mold exposure in military settings is widespread. Veterans lived and worked in mold-contaminated barracks, base housing, ships, and field facilities for decades. The PACT Act of 2022 created an expanded airborne hazards category that covers toxic environmental exposures — including mold — and eases the path to service connection for many veterans who were previously denied.
Where Veterans Were Exposed to Mold
Mold thrives in humid, poorly ventilated environments — exactly the conditions common in aging military infrastructure. Documented sources of mold exposure include:
- Barracks and base housing — leaking roofs, faulty HVAC systems, and flooded basements created chronic mold problems at installations across all branches
- Naval vessels and submarines — enclosed spaces with persistent humidity and limited ventilation are ideal for mold growth
- Camp Lejeune housing — in addition to the well-documented water contamination at Camp Lejeune, base housing there had documented mold problems in residential units
- Overseas deployments — structures in Iraq, Afghanistan, and other deployment locations often had severe mold contamination combined with burn pit and dust exposures
PACT Act: Expanded Eligibility for Mold Claims
The Sergeant First Class Heath Robinson Honoring our Promise to Address Comprehensive Toxics (PACT) Act signed in August 2022 expanded VA coverage for toxic environmental exposures. Under the PACT Act's airborne hazards category, veterans who served after August 2, 1990, in Southwest Asia or certain other locations are presumed to have been exposed to airborne hazards. Mold — especially in combination with burn pit smoke and chemical fumes — falls within this expanded framework.
Even if mold is not specifically named as a PACT Act presumptive, the Act's provisions make it easier to establish service connection by requiring VA to give more favorable consideration to environmental exposure evidence and lay testimony about in-service living conditions. Visit our PACT Act Explained page for full details on eligibility and enrollment.
VA Ratings for Specific Mold-Related Conditions
Because VA rates by residual condition rather than exposure, your rating depends on which organ systems are affected and how severely.
Rhinitis — DC 6522
Allergic or non-allergic rhinitis caused by mold exposure is rated under DC 6522.
- 10% — chronic rhinitis with infrequent episodes of nasal obstruction or discharge
- 30% — rhinitis with nasal polyps or persistent obstruction on both sides
- 50% — near-complete obstruction of both nasal passages
Sinusitis — DC 6510
Chronic sinusitis — infection or inflammation of the sinus cavities due to mold — is rated under DC 6510 (pansinusitis) or adjacent codes for specific sinuses (DC 6511–6513).
- 10% — one or two incapacitating episodes per year requiring antibiotics, or three or more non-incapacitating episodes per year
- 30% — three or more incapacitating episodes per year, or obstructive or purulent discharge more than 50% of the time
- 50% — six or more incapacitating episodes per year, or near-constant nasal discharge and obstruction
Asthma — DC 6602
Mold exposure is a known asthma trigger and can cause new-onset asthma or worsen pre-existing asthma. VA rates asthma under DC 6602 based on FEV1 percentage, FEV1/FVC ratio, and treatment requirements.
- 10% — FEV1 71–80% predicted, or FEV1/FVC 71–80%, or daily inhaled bronchodilator use
- 30% — FEV1 56–70% predicted, or FEV1/FVC 56–70%, or daily bronchodilator plus daily anti-inflammatory use
- 60% — FEV1 40–55% predicted, or FEV1/FVC 40–55%, or at least monthly physician visits required
- 100% — FEV1 less than 40%, or FEV1/FVC less than 40%, or requires daily systemic corticosteroids
Pulmonary Fibrosis — DC 6825
Severe or prolonged mold exposure — especially to Aspergillus or Stachybotrys species — can cause pulmonary fibrosis (scarring of the lung tissue). VA rates pulmonary fibrosis under DC 6825.
- 30% — FVC 70–80% predicted, with dyspnea on moderate exertion
- 60% — FVC 51–70% predicted, or dyspnea on mild exertion
- 100% — FVC 50% or less predicted, or dyspnea at rest or with minimal exertion
Mycotoxin Sensitivity: A Controversial Diagnosis
Some veterans pursue claims under "mycotoxin sensitivity" or "toxic mold syndrome." VA does not recognize these as standalone diagnostic categories. However, the underlying residual conditions — rhinitis, asthma, cognitive impairment, immune dysfunction — are ratable under their respective diagnostic codes. Focus your claim on documented, diagnosable conditions rather than the label "mold illness" alone.
Documenting Your Mold Exposure Claim
Building a strong mold exposure claim requires several types of evidence:
- Maintenance records — installation work orders, facility inspection reports, or housing office complaints documenting mold in your specific barracks or housing unit
- Buddy statements — fellow veterans who lived or worked in the same facility and witnessed the mold conditions
- News articles or government reports — many bases have been publicly documented as having chronic mold problems
- Medical records — treatment notes for respiratory conditions that began or worsened during your time at the affected installation
- Industrial hygienist report — if the installation has been assessed for air quality, those reports can be obtained through FOIA requests
Key Takeaways
- VA rates mold illness by residual condition — rhinitis (DC 6522), sinusitis (DC 6510), asthma (DC 6602), or pulmonary fibrosis (DC 6825).
- The PACT Act expanded VA's consideration of airborne hazard exposures, making mold claims easier to establish for post-1990 veterans.
- Maintenance records and buddy statements proving mold in your specific barracks or ship are essential nexus evidence.
- Multiple residual conditions from mold exposure can be rated separately, combining into a significantly higher total disability percentage.
Estimate your combined rating using the VA Disability Rating Calculator. Learn more on the main VA Disability hub.
Frequently Asked Questions
Is mold exposure covered under the PACT Act?
Mold exposure falls within the PACT Act's broader airborne hazards and toxic environmental exposure framework. While mold is not named as a specific PACT Act presumptive, the Act requires VA to give favorable consideration to lay testimony about living conditions and makes it easier to establish service connection for respiratory conditions linked to environmental exposures during qualifying service periods.
What rating can I get for mold-related asthma?
VA rates asthma under DC 6602 based on pulmonary function tests and treatment requirements. The rating ranges from 10% (daily inhaled bronchodilator) up to 100% (FEV1 below 40% predicted or daily systemic corticosteroids required). Get a spirometry test (breathing test) before your C&P exam so your current lung function is on record.
How do I prove mold was in my barracks?
Request maintenance records and work orders from your installation through a FOIA request to the relevant branch of service. Buddy statements from fellow veterans who lived in the same unit are also strong evidence. News articles, inspector general reports, and base housing office complaints documenting mold at your facility can all be submitted to VA.
Can I get rated for both sinusitis and rhinitis from mold exposure?
Yes, as long as they are separate diagnoses documented by a physician. VA can rate rhinitis (DC 6522) and sinusitis (DC 6510) as distinct conditions. However, VA's anti-pyramiding rule (38 CFR § 4.14) prevents rating two conditions for the exact same symptoms, so your physician's records need to clearly distinguish each diagnosis.
Does VA recognize mycotoxin illness as a ratable condition?
VA does not have a diagnostic code specifically for "mycotoxin illness" or "toxic mold syndrome." However, the individual conditions these exposures cause — asthma, rhinitis, sinusitis, cognitive impairment, pulmonary fibrosis — are all ratable. Work with your physician to document specific diagnoses rather than the general exposure label.
How does Camp Lejeune mold exposure affect my claim?
Camp Lejeune veterans may have overlapping exposure claims — water contamination, mold in base housing, and secondhand exposures to multiple toxins. The Camp Lejeune Justice Act and PACT Act together provide multiple pathways to service connection. Document each exposure type separately and file claims for each resulting condition to maximize your total rating.