Home / ICD-10-CM / Chapter 9: Diseases of the circulatory system (I00-I99) / Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)

I27.84: Fontan related circulation

ICD-10-CM code I27.84

New code ยท FY2026

Not billable: this is a header. Use one of the more specific codes below.

  • New code, effective October 1, 2025 (FY2026).

Code breakdown

I27.84

  1. I27CategoryOther pulmonary heart diseases
  2. 8Character 4Other specified pulmonary heart diseases
  3. 4Character 5Fontan related circulation

Codes under I27.84

  • I27.840 Fontan-associated liver disease [FALD]
  • I27.841 Fontan-associated lymphatic dysfunction
  • I27.848 Other Fontan-associated condition
  • I27.849 Fontan related circulation, unspecified

Check this code

All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.