E03 ICD-10-CM Code: Other hypothyroidism
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
E03Other hypothyroidism
ICD-10-CM diagnosis code · United States clinical modification
Where E03 sits
- 1
Chapter 4
Endocrine, nutritional and metabolic diseases (E00-E89)
- 2
Section
Disorders of thyroid gland (E00-E07)
- 3
Category E03
Other hypothyroidism
- 4
Code E03
Other hypothyroidism
Codes under E03
E03 is a non-billable category. Choose the child code that best matches the documented diagnosis.
E03.0Congenital hypothyroidism with diffuse goiterE03.1Congenital hypothyroidism without goiterE03.2Hypothyroidism due to medicaments and other exogenous substancesE03.3Postinfectious hypothyroidismE03.4Atrophy of thyroid (acquired)E03.5Myxedema comaE03.8Other specified hypothyroidismE03.9Hypothyroidism, unspecifiedNotes for this code
Inclusion terms
No inclusion terms are listed for E03.
Code first
No “code first” instruction is listed for E03.
Use additional code
No “use additional code” instruction is listed for E03.
Excludes1
Conditions that should not be reported together with this code.
- iodine-deficiency related hypothyroidism (E00-E02)
- postprocedural hypothyroidism (E89.0)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for E03.
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.
Frequently asked questions
What does ICD-10-CM code E03 mean?
E03 is the FY 2027 U.S. ICD-10-CM code for “Other hypothyroidism.”
Is E03 a billable or specific ICD-10-CM code?
No. E03 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is E03 located in ICD-10-CM?
E03 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Disorders of thyroid gland (E00-E07) (E00–E07), under category E03, Other hypothyroidism.
What coding notes are listed for E03?
No inclusion terms are listed for E03 in this reference record. No code-first instruction is listed. Excludes1 notes: iodine-deficiency related hypothyroidism (E00-E02); postprocedural hypothyroidism (E89.0). No Excludes2 note is listed.