Diagnostic Code 6275 · 38 CFR §4.87a
Anosmia is the complete loss of the sense of smell. In veterans, this condition most commonly results from traumatic brain injury (TBI) where the olfactory nerves are damaged by head impact, blast exposure causing shearing of the delicate olfactory nerve fibers, exposure to toxic chemicals or burn pit smoke that damages the nasal mucosa, or chronic sinusitis that destroys olfactory tissue. The loss of smell significantly impacts quality of life — veterans with anosmia cannot detect gas leaks, smoke, spoiled food, or other environmental dangers. The condition also severely diminishes the sense of taste since the two senses are closely linked. The VA assigns a single fixed 10 percent rating for complete loss of smell, and this rating does not increase regardless of severity or impact on daily functioning.
| Rating | Criteria |
|---|---|
| 10% |
Smell identification test (such as the University of Pennsylvania Smell Identification Test or UPSIT) documenting anosmia or severe hyposmia. ENT examination confirming the loss of smell. Neurological evaluation if the anosmia is related to TBI — this connects the condition to the brain injury mechanism. Service treatment records documenting the causative event: head injury, blast exposure, toxic chemical exposure, or burn pit proximity. MRI of the brain showing any olfactory bulb or frontal lobe damage if TBI-related. Buddy statements from family members describing the impact — inability to smell cooking, gas, or environmental hazards.