Excludes1 pair

J68.1 vs J68.4

J68.1 and J68.4 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 J68.4
chronic pulmonary edema due to chemicals, gases, fumes and vapors (J68.1)
J68.1

Pulmonary edema due to chemicals, gases, fumes and vapors

Billable
Chapter 10
Diseases of the respiratory system
Section
J60-J70
Use when the record says
  • Chemical pulmonary edema (acute) (chronic)
Indexed under
  • Silo-fillers' disease › pulmonary edema
  • Disease, diseased › silo-filler's › pulmonary edema
  • Edema, edematous › lung › chemical (acute)
  • Edema, edematous › lung › chemical › chronic
  • Edema, edematous › lung › due to › chemicals, fumes or vapors (inhalation)
J68.4

Chronic respiratory conditions due to chemicals, gases, fumes and vapors

Billable
Chapter 10
Diseases of the respiratory system
Section
J60-J70
Indexed under
  • Bronchiolitis › chemical (chronic)
  • Bronchitis › chemical › chronic
  • Bronchitis › chemical › due to fumes or vapors
  • Bronchitis › chronic › chemical (due to fumes or vapors)
  • Bronchitis › chemical › due to fumes or vapors › chronic

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