E06.3 Autoimmune thyroiditis

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Autoimmune thyroiditis is E06.3 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
E00-E07: Disorders of thyroid gland (E00-E07)
Category E06
8 codes (7 billable)
FY2026 Status
Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to E06.3:

  • Hashitoxicosis (transient)
  • Lymphadenoid goiter
  • Hashimoto's disease or thyroiditis
  • Struma › lymphomatosa
  • Struma › Hashimoto
  • Autoimmune › thyroiditis
  • Disease, diseased › Hashimoto's (struma lymphomatosa)
  • Goiter (plunging) (substernal) › lymphadenoid

Inclusion Terms

  • Hashimoto's thyroiditis
  • Hashitoxicosis (transient)
  • Lymphadenoid goiter
  • Lymphocytic thyroiditis
  • Struma lymphomatosa

U.S. Hospital Utilization

  • An estimated 94,180 U.S. inpatient stays in 2023 included E06.3 among the documented diagnoses.
  • 595 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Diabetes mellitus (TOC entry)

a. Diabetes mellitus ................................................................................................................... 39

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.4.a
Obesity (TOC entry)

b. Obesity .................................................................................................................................. 42

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.4.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference E06.3 with the canonical source and edition:

E06.3 — Autoimmune thyroiditis. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/E06.3

Canonical URL: https://icd10codingpro.com/codes/E06.3

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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