Excludes1 pair

J95.2 vs J98.4

J95.2 and J98.4 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 J98.4
pulmonary insufficiency following surgery (J95.1-J95.2)
J95.2

Acute pulmonary insufficiency following nonthoracic surgery

Billable
Chapter 10
Diseases of the respiratory system
Section
J95
Indexed under
  • Complication › surgical procedure › pulmonary insufficiency (acute)
  • Insufficiency, insufficient › pulmonary › acute, following surgery (nonthoracic)
  • Complication › respiratory system › postoperative › pulmonary insufficiency (acute) (after nonthoracic surgery)
J98.4

Other disorders of lung

Billable
Chapter 10
Diseases of the respiratory system
Section
J96-J99
Use when the record says
  • Calcification of lung
  • Cystic lung disease (acquired)
  • Lung disease NOS
  • Pulmolithiasis
Indexed under
  • Honeycomb lung
  • Pneumatocele (lung)
  • Pneumonitis (acute) (primary)
  • Pneumopathy NEC
  • Pulmolithiasis

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