2026 ICD-10-CM Diagnosis Code E78.79Other disorders of bile acid and cholesterol metabolism

ICD-10-CM Codes›E00–E89›E70-E88›E78

ICD-10-CM E78.79
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

E78.79 is a billable ICD-10-CM diagnosis code for other disorders of bile acid and cholesterol metabolism. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified nutritional and metabolic disorders.

Code Identity

ICD-10-CM Code
E78.79
Billable Status
Yes — Valid for Submission
Code Describes
Other disorders of bile acid and cholesterol metabolism
Short Description
Other disorders of bile acid and cholesterol metabolism
Same as the full description in the CMS dataset.
Parent Code
E78.7
Disorders of bile acid and cholesterol metabolism

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE70-E88Metabolic disorders
CategoryE78Disorders of lipoprotein metabolism and other lipidemias
This CodeE78.79Other disorders of bile acid and cholesterol metabolism

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bile acid CoA ligase deficiency and defective amidation
  • Bile acid malabsorption syndrome
  • Bile acid malabsorption syndrome type I
  • Bile acid malabsorption syndrome type II
  • Cholesterol tophus
  • Deficiency of cholate-CoA ligase
  • Deficiency of cholesterol esterase
  • Deficiency of cholesterol oxidase
  • Delta-4-3-oxosteroid-5-beta-reductase deficiency
  • Desmosterolosis
  • Disorder of cholesterol catabolism
  • Disorder of cholesterol metabolism
  • Disorder of cholesterol synthesis
  • Familial hypercholanemia
  • Intestinal malabsorption
  • Intestinal malabsorption due to bile acid synthesis defect
  • Lathosterolosis
  • Neonatal osteosclerotic dysplasia
  • Synthetic defect of bile acids

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • bile acid and cholesterol metabolism
        • other specified
    • Disorder(of)
      • cholesterol and bile acid metabolism
        • other specified

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR END016
Other specified and unspecified nutritional and metabolic disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Lipid Metabolism Disorders

Metabolism is the process your body uses to make energy from the food you eat. Food is made up of proteins, carbohydrates, and fats. Chemicals in your digestive system (enzymes) break the food parts down into sugars and acids, your body's fuel. Your body can use this fuel right away, or it can store the energy in your body tissues.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert E78.79 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
272.8 Lipoid metabol dis NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About E78.79Overview

Is E78.79 (Disorders of bile acid and cholesterol metabolism) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other disorders of bile acid and cholesterol metabolism on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of E78.79?

Under the General Equivalence Mappings, other disorders of bile acid and cholesterol metabolism converts to ICD-9-CM 272.8 (lipoid metabol dis NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.