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Condition/Disorder Synonyms

  • Extrinsic asthma

  • Intrinsic asthma

  • Exercise-induced asthma

  • Asthmatic bronchitis

  • Bronchial asthma

  • Bronchial hyperresponsiveness

  • Chronic lung disease

ICD-9-CM Codes

  • 493.00 Extrinsic asthma, unspecified

  • 493.01 Extrinsic asthma with status asthmaticus

  • 493.02 Extrinsic asthma with (acute) exacerbation

  • 493.10 Intrinsic asthma, unspecified

  • 493.11 Intrinsic asthma with status asthmaticus

  • 493.12 Intrinsic asthma with (acute) exacerbation

  • 493.20 Chronic obstructive asthma, unspecified

  • 493.21 Chronic obstructive asthma with status asthmaticus

  • 493.22 Chronic obstructive asthma with (acute) exacerbation

  • 493.81 Exercise-induced bronchospasm

  • 493.82 Cough variant asthma

  • 493.90 Asthma unspecified type, unspecified

  • 493.91 Asthma unspecified type with status asthmaticus

  • 493.92 Asthma, unspecified type, with (acute) exacerbation

  • 780.7 Malaise and fatigue

  • 786.0 Dyspnea and respiratory abnormalities

  • 786.05 Shortness of breath

ICD-10-CM Codes

  • J44.9 Chronic obstructive pulmonary disease (COPD), unspecified

  • J44.0 COPD with acute lower respiratory infection

  • J44.1 COPD with (acute) exacerbation

  • J45.20 Mild intermittent asthma, uncomplicated

  • J45.22 Mild intermittent asthma with status asthmaticus

  • J45.21 Mild intermittent asthma with (acute) exacerbation

  • J45.901 Unspecified asthma with (acute) exacerbation

  • J45.902 Unspecified asthma with status asthmaticus

  • J45.909 Unspecified asthma, uncomplicated

  • J45.990 Exercise-induced bronchospasm

  • J45.991 Cough variant asthma

  • J45.998 Other asthma

Preferred Practice Patterns

Key Features


  • Form of bronchial disorder associated with airway obstruction, marked by recurrent attacks of paroxysmal dyspnea, with wheezing due to spasmodic contraction of the bronchi.5,6,7

  • Chronic respiratory disease manifested as difficulty breathing due to the narrowing of bronchial passageways.

  • Chronic lung disease that inflames and narrows the airways leading to recurrent periods of wheezing, chest tightness, shortness of breath, and cough.

  • Coughing often occurs at night or early in the morning, but may go unnoticed during the day or be considered an allergic response to an inhaled (airborne or environmental) trigger.

  • Affects people of all ages, but most often starts during childhood.

  • More than 22 million people are known to have asthma in the United States; nearly 6 million are children.6

  • People with asthma have inflamed airways, which may become sensitive and tend to react strongly to certain inhaled substances.

  • When airways react, the muscles around them tighten, narrowing the lumen wall leading to less airflow into the lungs; swelling of the lumen may result in narrowing, leading to further restriction and triggering a cascade of cells to thicken mucus or increase mucus production.

  • Symptoms may be mild and self-resolve or require minimal treatment with prescription medication; some symptoms are persistent and require ongoing prescription medication for control.

  • Symptom recognition is important to prevent long-term damage.

  • Children often have difficulties expressing symptoms of an attack, so adults must be aware of a child's presentation ...

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