E06.9 Thyroiditis, unspecified

Billable ICD-10-CM code, FY2026.

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)

• 245.9 Thyroiditis, unspecified

Code annotations containing back-references to E06.9

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 E06.9

• Capsulitis (joint) › thyroid
• Thyroiditis

Nearby codes

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