ICD-10-CM > R00-R99 > R00-R09 > R04 > R04.8 > R04.81 R04.81 Acute idiopathic pulmonary hemorrhage in infants Billable/Specific Copy Code Copy Description Applicable To AIPHIAcute idiopathic hemorrhage in infants over 28 days old Type 1 Excludes perinatal pulmonary hemorrhage (P26.-)von Willebrand disease (D68.0-)