E78.3 Hyperchylomicronemia

The ICD-10-CM code for Hyperchylomicronemia is E78.3 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

4: Endocrine, nutritional and metabolic diseases (E00-E89)

Section

E70-E88: Metabolic disorders (E70-E88)

Category E78

24 codes (18 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to E78.3:

• Hyperchylomicronemia (familial) (primary)
• Chylomicronemia (fasting) (with hyperprebetalipoproteinemia)
• Bürger-Grütz disease or syndrome
• Disease, diseased › chylomicron retention
• Disease, diseased › Bürger-Grütz (essential familial hyperlipemia)
• Hyperchylomicronemia (familial) (primary) › with hyperbetalipoproteinemia
• Hepatosplenomegaly › hyperlipemic (Bürger-Grütz type)
• Frederickson's hyperlipoproteinemia, type › I and V

Inclusion Terms

• Chylomicron retention disease
• Fredrickson's hyperlipoproteinemia, type I or V
• Hyperlipidemia, group D
• Mixed hyperglyceridemia

U.S. Hospital Utilization

• An estimated 865 U.S. inpatient stays in 2023 included E78.3 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Diabetes mellitus (TOC entry)

a. Diabetes mellitus ................................................................................................................... 39

Obesity (TOC entry)

b. Obesity .................................................................................................................................. 42

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)