{"code":"I27.29","type":"code","title":"Other secondary pulmonary hypertension","codeAlso":["other associated disorders, if known, such as:","chronic myeloid leukemia (C92.10-C92.22)","essential thrombocythemia (D47.3)","Gaucher disease (E75.22)","hypertensive chronic kidney disease with end stage renal disease (I12.0, I13.11, I13.2)","hyperthyroidism (E05.-)","hypothyroidism (E00-E03)","polycythemia vera (D45)","sarcoidosis (D86.-)","associated underlying condition"],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["Eisenmenger's syndrome (I27.83)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["I27","I27.0","I27.1","I27.2","I27.20","I27.21","I27.22","I27.23","I27.24","I27.8","I27.81","I27.82","I27.83","I27.84","I27.840","I27.841","I27.848","I27.849","I27.89","I27.9"],"inclusionTerms":["Group 5 pulmonary hypertension","Pulmonary hypertension with unclear multifactorial mechanisms","Pulmonary hypertension due to hematologic disorders","Pulmonary hypertension due to metabolic disorders","Pulmonary hypertension due to other systemic disorders"],"sibling_titles":{"code":"I27.9","title":"Pulmonary heart disease, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Other secondary pulmonary hypertension is a billable ICD-10-CM diagnosis code (I27.29). Inclusion terms: Group 5 pulmonary hypertension; Pulmonary hypertension with unclear multifactorial mechanisms; Pulmonary hypertension due to hematologic disorders; Pulmonary hypertension due to metabolic disorders; Pulmonary hypertension due to other systemic disorders. Excludes1 (not coded here): Eisenmenger's syndrome (I27.83).","officialDefinition":"Other secondary pulmonary hypertension is a billable ICD-10-CM diagnosis code (I27.29). Inclusion terms: Group 5 pulmonary hypertension; Pulmonary hypertension with unclear multifactorial mechanisms; Pulmonary hypertension due to hematologic disorders; Pulmonary hypertension due to metabolic disorders; Pulmonary hypertension due to other systemic disorders. Excludes1 (not coded here): Eisenmenger's syndrome (I27.83). Code also: other associated disorders, if known, such as:; chronic myeloid leukemia (C92.10-C92.22); essential thrombocythemia (D47.3); Gaucher disease (E75.22); hypertensive chronic kidney disease with end stage renal disease (I12.0, I13.11, I13.2); hyperthyroidism (E05.-); hypothyroidism (E00-E03); polycythemia vera (D45); sarcoidosis (D86.-); associated underlying condition.","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}