E74.2 – Disorders of galactose metabolism

ICD-10-CM 2027 diagnosis code · Metabolic disorders

Non-billable header

ICD-10-CM code E74.2

Code: E74.2 (claims format: E742)
Description: Disorders of galactose metabolism
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: E70-E88 Metabolic disorders
Parent codes: E74

Billable codes under E74.2

E74.2 is a header code and cannot be used on claims. Choose the most specific code:

E74.20 – Disorders of galactose metabolism, unspecifiedBillable
E74.21 – GalactosemiaBillable
E74.29 – Other disorders of galactose metabolismBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

E74 – Other disorders of carbohydrate metabolism

Excludes1 (not coded here):

diabetes mellitus (E08-E13)
hypoglycemia NOS (E16.2)
increased secretion of glucagon (E16.3)
mucopolysaccharidosis (E76.0-E76.3)

Block E70-E88

Excludes1 (not coded here):

androgen insensitivity syndrome (E34.5-)
congenital adrenal hyperplasia (E25.0)
hemolytic anemias attributable to enzyme disorders (D55.-)
Marfan syndrome (Q87.4-)
5-alpha-reductase deficiency (E29.1)

Excludes2 (not included here):

Ehlers-Danlos syndromes (Q79.6-)

Related codes in E74

Frequently asked questions

What is ICD-10 code E74.2?

E74.2 is the ICD-10-CM code for disorders of galactose metabolism, in the block E70-E88 (Metabolic disorders).

Is E74.2 a billable code?

No. E74.2 is a header code with more specific child codes; report one of the billable codes listed above.

What category does E74.2 belong to?

It belongs to category E74 – Other disorders of carbohydrate metabolism.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.