U.S. ICD-10-CM · FY 2027

E70.21 ICD-10-CM Code: Tyrosinemia

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

E70.21

Tyrosinemia

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where E70.21 sits

  1. 1

    Chapter 4

    Endocrine, nutritional and metabolic diseases (E00-E89)

  2. 2

    Section

    Metabolic disorders (E70-E88)

  3. 3

    Category E70

    Disorders of aromatic amino-acid metabolism

  4. 4

    Subcategory E70.2

    Disorders of tyrosine metabolism

  5. 5

    Code E70.21

    Tyrosinemia

Documentation details

Notes for this code

Inclusion terms

  • Hypertyrosinemia

Code first

No “code first” instruction is listed for E70.21.

Use additional code

No “use additional code” instruction is listed for E70.21.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for E70.21.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for E70.21.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code E70.21 mean?

E70.21 is the FY 2027 U.S. ICD-10-CM code for “Tyrosinemia.”

Is E70.21 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, E70.21 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is E70.21 located in ICD-10-CM?

E70.21 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Metabolic disorders (E70-E88) (E70–E88), under category E70, Disorders of aromatic amino-acid metabolism and subcategory E70.2, Disorders of tyrosine metabolism.

What coding notes are listed for E70.21?

Its listed inclusion terms are Hypertyrosinemia. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

Keep exploring

Related E70.2 codes

E70.20

Disorder of tyrosine metabolism, unspecified

E70.29

Other disorders of tyrosine metabolism

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