AHA Coding Clinic® for ICD-9 - 1984 July - August

Coding Chronic Obstructive Pulmonary Disease (COPD)

The question of which code(s) to assign when chronic obstructive pulmonary disease (COPD) appears in the statement of diagnosis is not easily answered. The increased use of COPD as a diagnostic description is not compatible in all instances with textbook descriptions of COPD or ICD-9-CM classification of COPD. Therefore, the following guides are provided to assist in the classification of COPD. It is important to note that the 496 code label reads Chronic airway obstruction, not elsewhere classified (NEC). Included within the 496 category are chronic airway obstruction not otherwise specified (NOS), chronic nonspecific lung disease, chronic obstructive lung...

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