Skip to main content

Anosmia

Jordan I. Teitelbaum, DO, Ralph Abi-Hachem, MD, MSc and David W. Jang, MD Reviewed 06/2019
 


BASICS

DESCRIPTION

  • Anosmia is defined as the inability to detect smells or odors. This condition can be temporary or permanent depending on the underlying pathology.

  • Hyposmia is defined as a decrease in...

DIAGNOSIS

HISTORY

  • History of present illness should investigate the time course of symptoms and their relation to any URI or recent head injury. Important associated symptoms include nasal congestion, ...

TREATMENT

Treatment depends on the underlying pathology: 
  • Elimination of toxins and environmental safety (tobacco, household cleaning chemicals) (1)[A]

  • Address any underlying endocrine disturbances (hyp...

ONGOING CARE

PATIENT EDUCATION

  • Counsel patients on safety issues that may arise from the inability to detect odors. These include carefully noting expiration dates on foods, ensuring household smoke de...

REFERENCES

1
Doty RL. The olfactory system and its disorders. Semin Neurol.  2009;29(1):74–81. [View Abstract on OvidMedline]
2
Hawkes C. Olfaction in neurodegenerative disorder. Adv Otorhinolaryngo...

ADDITIONAL READING

Doty RL. Olfaction in Parkinson’s disease and related disorders. Neurobiol Dis.  2012;46(3):527–552. [View Abstract on OvidMedline] 

CODES

ICD10

  • R43.0 Anosmia

  • J39.8 Other specified diseases of upper respiratory tract

ICD9

  • 781.1 Disturbances of sensation of smell and taste

  • 951.8 Injury to other specified cranial nerves

  • 478.9 Other and uns...

CLINICAL PEARLS

  • Advancing age is a significant risk factor associated with a decline in olfaction. However, this is a diagnosis of exclusion and other causes must first be tested for and ruled out.

  • Red...

Subscribe to Access Full Content

Sign Up for a 10-Day Free Trial

Sign up for a 10-day FREE Trial now and receive full access to all content.

 
×