ICD-10 I27.20
Billable / Specific HCC v28: 85Pulmonary hypertension, unspecified
About ICD-10-CM I27.20
ICD-10-CM code I27.20 represents Pulmonary hypertension, unspecified. This is a billable/specific code in the Circulatory System chapter (block I27). The 2026 edition of ICD-10-CM I27.20 became effective on October 1, 2025.
Coding Tips for I27.20
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
I27.20 is a CMS-HCC v28 risk-adjustment code (category 85). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under I27.20. Per CMS ICD-10-CM Tabular 2026.
- Pulmonary hypertension NOS
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for I27.20
Local Coverage Determinations (LCDs) from CMS MACs that list I27.20 as a covered diagnosis.
Showing top 10 of 358 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I27.20.
1 Cigna
5 Medicare
2 Aetna
CPT Codes Commonly Billed with I27.20
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 93306 Echo with Doppler — heart failure, cardiomyopathy, mitral/aortic/tricuspid valve disease, chest pain, dyspnea, CAD, pulmonary HTN, ASD, VSD, congenital valve Cardiology
- 71260 CT chest with contrast — pulmonary embolism, chest pain, dyspnea, wheezing, pulmonary HTN, lung cancer, nodule, thrombophilia Radiology
Codes Adjacent To I27.20
Other codes in section I26-I28 (Pulmonary heart disease and diseases of pulmonary circulation).
ICD-10 I27.20, Billing FAQ
Is ICD-10 code I27.20 billable? +
Yes, I27.20 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to I27.20? +
ICD-10 I27.20 includes: Pulmonary hypertension NOS.
Does I27.20 affect Medicare Advantage HCC risk adjustment? +
Yes. I27.20 maps to CMS-HCC v28 category 85. Capture this diagnosis annually for accurate Medicare Advantage risk score.
What CPT codes are commonly billed with I27.20? +
Procedures frequently paired with I27.20 include: 93306, 71260.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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