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I27.1

I27.1Kyphoscoliotic heart disease

Billable / specific codeICD-10-CM

I27.1 is a billable, specific ICD-10-CM code for kyphoscoliotic heart disease. It is valid for submission on a claim.

Other codes that can never be billed with I27.1

These codes carry an Excludes1 note pointing at I27.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I27.1 alone.

Risk adjustment

I27.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 226 Heart Failure, Except End Stage and Acute0.360 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

I27.1 is named in 12 Medicare coverage policies 12 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56625Billing and Coding: Echocardiography

How I27.1 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I27.1.

  • Kyphoscoliosis, kyphoscolioticheart(disease)
  • Disease, diseasedheartkyphoscoliotic
  • Hypertension, hypertensivepulmonarydue tokyphoscoliotic heart disease

Related codes at this level

Codes that share I27. If I27.1 is not quite right, the correct code is usually one of these.

Questions about I27.1

Is I27.1 a billable ICD-10-CM code?
Yes. I27.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I27.1 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Pulmonary heart disease and diseases of pulmonary circulation (I26-I28).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.