ICD-10-CM > I00-I99 > I26-I28 > I27 > I27.2 > I27.24 I27.24 Chronic thromboembolic pulmonary hypertension Billable/Specific Copy Code Copy Description Applicable To Group 4 pulmonary hypertension Code Also associated pulmonary embolism, if applicable (I26.-, I27.82)