ICD-10-CM 2027
ICD-10 code for Hamman-Rich syndrome
From the official ICD-10-CM alphabetic index entry “Hamman-Rich syndrome”. Page updated September 29, 2026.
About coding Hamman-Rich syndrome
The ICD-10-CM code for Hamman-Rich syndrome is J84.114 (Acute interstitial pneumonitis).
Within J84.11 (idiopathic interstitial pneumonia), J84.114 is specifically for acute interstitial pneumonitis. Related codes cover not otherwise specified (J84.111), idiopathic pulmonary fibrosis (J84.112), idiopathic non-specific interstitial pneumonitis (J84.113), respiratory bronchiolitis interstitial lung disease (J84.115), Cryptogenic organizing pneumonia (J84.116) and Desquamative interstitial pneumonia (J84.117).
Don't report J84.114 together with the conditions in its Excludes1 note: pneumocystis pneumonia (B59).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for J84.114)
- pneumocystis pneumonia (B59)
Common questions about Hamman-Rich syndrome ICD-10 codes
What is the ICD-10 code for Hamman-Rich syndrome?
- J84.114 — Acute interstitial pneumonitis.
Is J84.114 billable?
- Yes. J84.114 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J84.114 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J84.114 as a principal diagnosis.
Is J84.114 a CC or MCC?
- J84.114 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.