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E22.1

✓ Billable

Hyperprolactinemia

Endocrine, nutritional and metabolic diseases (E00-E89)

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📋 Code Instructions

  • • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

❌ Excludes1

inherited from E22

Rules from parent category E22: Hyperfunction of pituitary gland

  • • Cushing's syndrome (E24.-)
  • • Nelson's syndrome (E24.1)
  • • overproduction of ACTH not associated with Cushing's disease (E27.0)
  • • overproduction of pituitary ACTH (E24.0)
  • • overproduction of thyroid-stimulating hormone (E05.8-)

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Code Information

CodeE22.1
BillableYes
ParentE22
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes15 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)