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ICD-10-CM 2027

ICD-10 code for heart disease kyphoscoliosis

I27.1

Kyphoscoliotic heart disease

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Kyphoscoliosis, kyphoscoliotic (acquired) › heart (disease)”. Page updated September 29, 2026.

About coding heart disease kyphoscoliosis

The ICD-10-CM code for heart disease kyphoscoliosis is I27.1 (Kyphoscoliotic heart disease).

Within I27 (other pulmonary heart diseases), I27.1 is specifically for Kyphoscoliotic heart disease. Related codes cover primary pulmonary hypertension (I27.0), other secondary pulmonary hypertension (I27.2), other specified pulmonary heart diseases (I27.8) and pulmonary heart disease, unspecified (I27.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 314 (Other Circulatory System Diagnoses with MCC, relative weight 2.0873), DRG 315 (Other Circulatory System Diagnoses with CC, relative weight 0.9508) and DRG 316 (Other Circulatory System Diagnoses without CC/MCC, relative weight 0.6677), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

Common questions about heart disease kyphoscoliosis ICD-10 codes

What is the ICD-10 code for heart disease kyphoscoliosis?

I27.1 — Kyphoscoliotic heart disease.

Is I27.1 billable?

Yes. I27.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I27.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I27.1 as a principal diagnosis.

Is I27.1 a CC or MCC?

I27.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.