Excludes1 pair

J00 vs J02-

J00 and J02 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 J00
acute pharyngitis (J02.-)
J00

Acute nasopharyngitis [common cold]

Billable
Chapter 10
Diseases of the respiratory system
Section
J00-J06
Use when the record says
  • Acute rhinitis
  • Coryza (acute)
  • Infective nasopharyngitis NOS
  • Infective rhinitis
  • Nasal catarrh, acute
  • Nasopharyngitis NOS
Indexed under
  • Catarrh, catarrhal (acute) (febrile) (infectious) (inflammation)
  • Cold
  • Coryza (acute)
  • Nasopharyngitis (acute) (infective) (streptococcal) (subacute)
  • Cold › common (head)
J02

Acute pharyngitis

Not billable
Chapter 10
Diseases of the respiratory system
Section
J00-J06
Use when the record says
  • acute sore throat

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