Excludes1 pair

J05.0 vs J38-

J05.0 and J38 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on J38
obstructive laryngitis (acute) (J05.0)
J05.0

Acute obstructive laryngitis [croup]

Billable
Chapter 10
Diseases of the respiratory system
Section
J00-J06
Use when the record says
  • Obstructive laryngitis (acute) NOS
  • Obstructive laryngotracheitis NOS
Indexed under
  • Croup, croupous (catarrhal) (infectious) (inflammatory) (nondiphtheritic)
  • Angina › croupous
  • Angina › membranous
  • Angina › trachealis
  • Laryngitis › obstructive
J38

Diseases of vocal cords and larynx, not elsewhere classified

Not billable
Chapter 10
Diseases of the respiratory system
Section
J30-J39

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027