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ICD-10-CM Code I27.0
Primary pulmonary hypertension

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

I27.0 is a billable ICD code used to specify a diagnosis of primary pulmonary hypertension. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code I270 is used to code Pulmonary hypertension

Pulmonary hypertension (PH) is an increase of blood pressure in the pulmonary artery, pulmonary vein, or pulmonary capillaries, together known as the lung vasculature, leading to shortness of breath, dizziness, fainting, leg swelling and other symptoms. Pulmonary hypertension can be a severe disease with a markedly decreased exercise tolerance. It was first identified by Ernst von Romberg in 1891. According to the most recent classification, it can be one of six different types.

Specialty: Pulmonology, Cardiology
MeSH Code: D006976
ICD 9 Code: 416.0

Micrograph showing a plexiform lesion of the lung, as seen in irreversible pulmonary hypertension. H&E stain.

Source: Wikipedia

Coding Notes for I27.0 Info for medical coders on how to properly use this ICD-10 code

Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Pulmonary hypertension NOS - instead, use code I27.2
Secondary pulmonary hypertension - instead, use code I27.2

MS-DRG Mapping

  • DRG Group #314-316 - Other circulatory system diagnoses with MCC.
  • DRG Group #314-316 - Other circulatory system diagnoses with CC.
  • DRG Group #314-316 - Other circulatory system diagnoses without CC or MCC.

ICD-10-CM Alphabetical Index References for 'I27.0 - Primary pulmonary hypertension'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code I27.0. Click on any term below to browse the alphabetical index.

Cardiopathia nigra (I27.0)
Arrillaga-Ayerza syndrome(pulmonary sclerosis with pulmonary hypertension) (I27.0)
Ayerza's disease or syndrome(pulmonary artery sclerosis with pulmonary hypertension) (I27.0)


Primary pulmonary hypertension (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 416.0 was previously used, I27.0 is the appropriate modern ICD10 code.

Parent Code: I27 - Other pulmonary heart diseases

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/I270