I27.9

ICD-10Billable

Pulmonary heart disease, unspecified

Official ICD-10-CM descriptor (FY2026)

Pulmonary heart disease, unspecified

I27.9 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Chronic cardiopulmonary disease

Related codes in I27

Where this code sits

Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)
Parent code: I27

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.