2027 ICD-10-CM Diagnosis Code E77Disorders of glycoprotein metabolism

ICD-10-CM Codes›E00–E89›E70-E88›E77

ICD-10-CM E77
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

E77 is a non-billable ICD-10-CM category code for disorders of glycoprotein metabolism, so it cannot be submitted on claims. Use a more specific code from this category instead, such as E77.0, E77.1, E77.8, and E77.9.

Code Identity

ICD-10-CM Code
E77
Billable Status
No — Non-Billable Category
Code Describes
Disorders of glycoprotein metabolism
Short Description
Disorders of glycoprotein metabolism
Same as the full description in the CMS dataset.
Chapter
E70-E88
Metabolic disorders

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE70-E88Metabolic disorders
CategoryE77Disorders of glycoprotein metabolism
This CodeE77Disorders of glycoprotein metabolism

Specific Coding for Disorders of glycoprotein metabolismOverview

Non-specific codes like E77 require more characters. Use one of these billable codes instead:

  • Use E77.0 for Defects in post-translational modification of lysosomal enzymes

  • Use E77.1 for Defects in glycoprotein degradation

  • Use E77.8 for Other disorders of glycoprotein metabolism

  • Use E77.9 for Disorder of glycoprotein metabolism, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to E77: its own notes plus those printed at block E70-E88 and Chapter 4. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block E70-E88 Metabolic disorders applies to 286 codes
  • 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)
From Chapter 4 (E00-E89) Endocrine, nutritional and metabolic diseases applies to 973 codes
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block E70-E88 Metabolic disorders applies to 286 codes
  • Ehlers-Danlos syndromes (Q79.6-)

Notes

General instructions on how these codes are used.

From Chapter 4 (E00-E89) Endocrine, nutritional and metabolic diseases applies to 973 codes
  • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

Carbohydrate 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.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About E77Overview

What is the ICD-10 code for disorders of glycoprotein metabolism?

E77 is the ICD-10-CM category for disorders of glycoprotein metabolism, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is E77 (Disorders of glycoprotein metabolism) a billable code?

No. This is a category header that groups the codes for disorders of glycoprotein metabolism, and headers cannot be submitted on claims. Claims for disorders of glycoprotein metabolism need a more specific code from this category, such as E77.0, E77.1, and E77.8.

Can E77 be reported with a code from E34.5?

Not as a rule. The Excludes1 note at block E70-E88, which applies to E77, lists "androgen insensitivity syndrome (E34.5-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).