E06.2 Chronic thyroiditis with transient thyrotoxicosis

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• autoimmune thyroiditis (E06.3)

Applies from E06 Thyroiditis

Excludes1 (never code together)

• postpartum thyroiditis (O90.5)

Risk adjustment (HCC)

• RxHCC V08: HCC 44 — Thyroid Disorders

MS-DRG index

Defines the logic of DRG(s) 011-013 in MDC PRE.

Approximate ICD-9-CM (GEMs)

• 245.8 Other and unspecified chronic thyroiditis (approximate)

Code annotations containing back-references to E06.2

Back-references to E06.2

• Type 1 Excludes: E05 Thyrotoxicosis [hyperthyroidism] ("chronic thyroiditis with transient thyrotoxicosis (E06.2)")

Back-references to E06

• Code First: G63 Polyneuropathy in diseases classified elsewhere ("endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)")

Diagnosis Index entries for E06.2

• Thyroiditis › chronic (nonspecific) (sclerosing) › with thyrotoxicosis, transient
• Thyrotoxicosis (recurrent) › transient with chronic thyroiditis

Nearby codes

• E06 Thyroiditis
• E06.0 Acute thyroiditis
• E06.1 Subacute thyroiditis
• E06.2 Chronic thyroiditis with transient thyrotoxicosis (this code)
• E06.3 Autoimmune thyroiditis
• E06.4 Drug-induced thyroiditis
• E06.5 Other chronic thyroiditis
• E06.9 Thyroiditis, unspecified