E02 Subclinical iodine-deficiency hypothyroidism

Billable ICD-10-CM code, FY2026.

Risk adjustment (HCC)

• RxHCC V08: HCC 44 — Thyroid Disorders

MS-DRG index

Defines the logic of DRG(s) 643-645 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 244.8 Other specified acquired hypothyroidism (approximate)

Code annotations containing back-references to E02

Back-references to E02

• Type 1 Excludes: E00 Congenital iodine-deficiency syndrome ("subclinical iodine-deficiency hypothyroidism (E02)")
• Type 1 Excludes: E01 Iodine-deficiency related thyroid disorders and allied conditions ("subclinical iodine-deficiency hypothyroidism (E02)")
• Type 1 Excludes: E03 Other hypothyroidism ("iodine-deficiency related hypothyroidism (E00-E02)")
• Type 1 Excludes: E04 Other nontoxic goiter ("iodine-deficiency related goiter (E00-E02)")
• Type 1 Excludes: E61 Deficiency of other nutrient elements ("iodine deficiency related thyroid disorders (E00-E02)")
• Code First: F02 Dementia in other diseases classified elsewhere ("hypothyroidism, acquired (E00-E03.-)")
• Code First: G63 Polyneuropathy in diseases classified elsewhere ("endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)")
• Code Also: I27.29 Other secondary pulmonary hypertension ("hypothyroidism (E00-E03)")
• Code First: M14.8 Arthropathies in other specified diseases classified elsewhere ("hypothyroidism (E00-E03)")
• Type 2 Excludes: Q86 Congenital malformation syndromes due to known exogenous causes, not elsewhere classified ("iodine-deficiency-related hypothyroidism (E00-E02)")

Back-references to E02

• Type 1 Excludes: E00 Congenital iodine-deficiency syndrome ("subclinical iodine-deficiency hypothyroidism (E02)")
• Type 1 Excludes: E01 Iodine-deficiency related thyroid disorders and allied conditions ("subclinical iodine-deficiency hypothyroidism (E02)")
• Type 1 Excludes: E03 Other hypothyroidism ("iodine-deficiency related hypothyroidism (E00-E02)")
• Type 1 Excludes: E04 Other nontoxic goiter ("iodine-deficiency related goiter (E00-E02)")
• Type 1 Excludes: E61 Deficiency of other nutrient elements ("iodine deficiency related thyroid disorders (E00-E02)")
• Code First: F02 Dementia in other diseases classified elsewhere ("hypothyroidism, acquired (E00-E03.-)")
• Code First: G63 Polyneuropathy in diseases classified elsewhere ("endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)")
• Code Also: I27.29 Other secondary pulmonary hypertension ("hypothyroidism (E00-E03)")
• Code First: M14.8 Arthropathies in other specified diseases classified elsewhere ("hypothyroidism (E00-E03)")
• Type 2 Excludes: Q86 Congenital malformation syndromes due to known exogenous causes, not elsewhere classified ("iodine-deficiency-related hypothyroidism (E00-E02)")

Diagnosis Index entries for E02

• Hypothyroidism (acquired) › due to › iodine-deficiency, acquired › subclinical
• Hypothyroidism (acquired) › iodine-deficiency (acquired) › subclinical
• Hypothyroidism (acquired) › subclinical, iodine-deficiency related

Nearby codes

• E02 Subclinical iodine-deficiency hypothyroidism (this code)