Final answer:
In ICD-10, bronchitis and asthma were coded separately, but there was a code for overlap syndromes. ICD-11 provides clearer differentiation, advising codes for each condition independently.
Step-by-step explanation:
In the International Classification of Diseases (ICD) system, bronchitis and asthma are separate conditions with distinct codes. In the ICD-10, which was in use until January 1, 2022, each condition had its own specific codes. However, in ICD-10, there was a code (J44) for overlap syndromes which could represent conditions featuring both obstructive bronchitis and asthma. With the adoption of ICD-11, this specification in coding is expected to become even clearer. Asthma is a chronic inflammatory disease characterized by recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing. Bronchitis describes an inflammation of the bronchial tubes, leading to increased mucus production and cough. In ICD-11, it is advised to code each condition separately.