Answer:
The new system does not compel physicians to categorize asthma as either intrinsic or extrinsic. There are no separate codes for chronic obstructive asthma as well. Instead, asthma is just asthma and categorized by its degree of severity. The terms mild, moderate and severe are used in the codes to differentiate the severity levels. The condition is further categorized as either intermittent or persistent. The subcategories are broken down by complication – uncomplicated, with acute exacerbation and with status asthma. In addition to this, there are codes for other and unspecified asthma. The ICD-10 codes for asthma are given below.
J45: Asthma
J45.2: Mild intermittent asthma
J45.20: Mild intermittent asthma, uncomplicated
J45.21: Mild intermittent asthma, with (acute) exacerbation
J45.22: Mild intermittent asthma, with status asthmaticus
J45.3: Mild persistent asthma
J45.30: Mild persistent asthma, uncomplicated
J45.31: Mild persistent asthma, with (acute) exacerbation
J45.32: Mild persistent asthma, with status asthmaticus
J45.4: Moderate persistent asthma
J45.40: Moderate persistent asthma, uncomplicated
J45.41: Moderate persistent asthma, with (acute) exacerbation
J45.42: Moderate persistent asthma, with status asthmaticus
J45.5: Severe persistent asthma
J45.50: Severe persistent asthma, uncomplicated
J45.51: Severe persistent asthma, with (acute) exacerbation
J45.52: Severe persistent asthma, with status asthmaticus
J45.9: Other and unspecified asthma
J45.90: Unspecified asthma
J45.901: Unspecified asthma, with (acute) exacerbation
J45.902: Unspecified asthma, with status asthmaticus
J45.909: Unspecified asthma, uncomplicated
J45.99: Other asthma
J45.990: Exercise induced bronchospasm
J45.991: Cough variant asthma
J45.998: Other asthma