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Asthma

Related Terms

Allergic Asthma
Asthmatic Bronchitis
Bronchial Asthma
Catarrhal Asthma
Chronic Desquamating Eosinophilic Bronchitis
Chronic Obstructive Pulmonary Disease (COPD)
Exercise Induced Asthma (EIA)
Exercise Induced Bronchonspasm (EIB)
Hyper-reactive Airway Disease
Reactive Airway Disease (RAD)

Differential Diagnoses

Acute bronchitis
Bronchiolitis
Chronic obstructive pulmonary disease (COPD)
Cystic fibrosis
Eosinophilic pneumonia
Gastroesophageal reflux
Heart failure
Inhalation of a foreign body
Panic disorder
Pneumothorax
Pulmonary embolism
Pulmonary mucus plug
Toxic inhalation
Tumor
Vocal cord dysfunction

Specialists

Allergist / Immunologist
Critical Care Internist
Emergency Medicine Physician
Pulmonologist

Comorbid Conditions

Allergic rhinitis
Gastrointestinal esophageal reflux disease (GERD)

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The factors most likely to influence disability are the severity of the attack, the development of complications, whether episodes are acute or part of a chronic condition, any underlying chronic medical conditions, the individual's type of work, and most importantly, the individual’s compliance with prescribed treatment.

Overall, the chronic, well-managed, mild to moderately severe asthmatic may experience very few days lost from work due to the disease. Smokers and individuals regularly exposed to known allergens are at greater risk for severe asthma with complications and increased duration.

Duration Trends from Reference Data

DURATION TRENDS

ICD-9-CM: 493, 493.0, 493.00, 493.1, 493.2, 493.9

Cases	Mean	Min	Max	No Lost Time	Over 6 Months
4987	26	0	417	0.6%	0%

Percentile:	5^th	25^th	Median	75^th	95^th
Days:	5	11	17	33	78

Differences may exist between the duration tables and the reference graphs. Duration tables provide expected recovery periods based on the type of work performed by the individual. The reference graphs reflect the actual experience of many individuals across the spectrum of physical conditions, in a variety of industries, and with varying levels of case management. Selected graphs combine multiple codes based on similar means and medians.

Medical Codes

	ICD-9-CM:
	493 -	Asthma
	493.0 -	Asthma, Extrinsic
	493.00 -	Asthma, Extrinsic, without Mention of Status Asthmaticus
	493.1 -	Asthma, Intrinsic
	493.2 -	Asthma, Chronic Obstructive
	493.9 -	Asthma, Unspecified
	493.91 -	Asthma, Unspecified, with Status Asthmaticus

Cited References

"Asthma." National Heart, Lung, and Blood Institute. Sep. 2008. Department of Health and Human Services. 5 Jan. 2009 <http://www.nhlbi.nih.gov/health/dci/Diseases/Asthma/Asthma_WhatIs.html>.

Canaday, Peter, and J. Collins. "Asthma." eMedicine. Eds. Jeffrey A. Miller, et al. 6 Dec. 2004. Medscape. 5 Jan. 2009 <http://emedicine.medscape.com/article/353436-overview>.

Morris, Michael J. "Asthma." eMedicine. Eds. Helen M. Hollingsworth, et al. 2 Apr. 2009. Medscape. 6 Apr. 2009 <http://emedicine.medscape.com/article/296301-overview>.

Source: Medical Disability Advisor

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