E76.21Header code — not billable

Morquio mucopolysaccharidoses

Chapter
4. Endocrine, nutritional and metabolic diseases
Category
E76
Effective date
October 1, 2026

Related codes in category E76

Frequently asked questions

What is ICD-10 code E76.21?

E76.21 is an ICD-10-CM diagnosis code for Morquio mucopolysaccharidoses.

Is E76.21 a billable code?

No. E76.21 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is E76.21 in?

E76.21 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.

When did E76.21 become effective?

E76.21 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to E76.21?

E76.21 belongs to category E76, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.