Excludes1 pair
J69.0 vs J95.4
J69.0 and J95.4 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 J69.0
chemical pneumonitis due to anesthesia (J95.4)
J69.0
Pneumonitis due to inhalation of food and vomit
Billable
- Chapter 10
- Diseases of the respiratory system
- Section
- J60-J70
Use when the record says
- Aspiration pneumonia NOS
- Aspiration pneumonia (due to) food (regurgitated)
- Aspiration pneumonia (due to) gastric secretions
- Aspiration pneumonia (due to) milk
- Aspiration pneumonia (due to) vomit
Indexed under
- Aspiration › bronchitis
- Aspiration › pneumonia
- Aspiration › pneumonitis
- Bronchitis › aspiration (due to food and vomit)
- Deglutition › pneumonia
J95.4
Chemical pneumonitis due to anesthesia
Billable
- Chapter 10
- Diseases of the respiratory system
- Section
- J95
Use when the record says
- Mendelson's syndrome
- Postprocedural aspiration pneumonia
Indexed under
- Mendelson's syndrome (due to anesthesia)
- Pneumonitis › postanesthetic
- Pneumonitis › postoperative
- Pneumonia › aspiration › postprocedural
- Pneumonitis › chemical › due to anesthesia
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