Chronic lower respiratory diseases - J40-J4A
Excludes1: It indicates that the conditions described by two codes cannot occur together in the same patient. These codes are mutually exclusive.
Type 1 Excludes:
- bronchitis due to chemicals, gases, fumes and vapors (J68.0)
Excludes2: This note means that the conditions described by two codes are not usually associated with each other but can sometimes occur together.
Type 2 Excludes:
- cystic fibrosis (E84.-)
These ranges represents Categories of Chronic lower respiratory diseases. The "J40-J4A" signifies that these are the diseases within this broad section.