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ICD10BillableValid for clinical use

ICD-10 Code E23.0: Hypopituitarism

E23.0 is a billable ICD-10 diagnosis code used to classify Hypopituitarism in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

When is it used?

  • May be used when a clinician documents hypopituitarism in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E20-E35Disorders of other endocrine glands
category
E23Hypofunction and other disorders of the pituitary gland
currentE23

Official coding notes

Inclusion terms
  • Fertile eunuch syndrome
  • Hypogonadotropic hypogonadism
  • Idiopathic growth hormone deficiency
  • Isolated deficiency of gonadotropin
  • Isolated deficiency of growth hormone
  • Isolated deficiency of pituitary hormone
  • Kallmann's syndrome
  • Lorain-Levi short stature
  • Necrosis of pituitary gland (postpartum)
  • Panhypopituitarism
  • Pituitary cachexia
  • Pituitary insufficiency NOS
  • Pituitary short stature
  • Sheehan's syndrome
  • Simmonds' disease
Applicable to
  • code, if applicable, for associated cachexia (E88.A)
Use additional code
  • code, if applicable, for associated cachexia (E88.A)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

EndocrinologistGeneral Physician

Coverage-related procedures and services

CPT 78351high
BONE DENSITY (BONE MINERAL CONTENT) STUDY, 1 OR MORE SITES; DUAL PHOTON ABSORPTIOMETRY, 1 OR MORE SITES
Source: CMS coverage guidance
CPT 78350high
BONE DENSITY (BONE MINERAL CONTENT) STUDY, 1 OR MORE SITES; SINGLE PHOTON ABSORPTIOMETRY
Source: CMS coverage guidance
CPT 0556Thigh
BONE STRENGTH AND FRACTURE RISK USING FINITE ELEMENT ANALYSIS OF FUNCTIONAL DATA AND BONE-MINERAL DENSITY UTILIZING DATA FROM A COMPUTED TOMOGRAPHY SCAN; ASSESSMENT OF BONE STRENGTH AND FRACTURE RISK AND BONE-MINERAL DENSITY
Source: CMS coverage guidance
CPT 0557Thigh
BONE STRENGTH AND FRACTURE RISK USING FINITE ELEMENT ANALYSIS OF FUNCTIONAL DATA AND BONE-MINERAL DENSITY UTILIZING DATA FROM A COMPUTED TOMOGRAPHY SCAN; INTERPRETATION AND REPORT
Source: CMS coverage guidance
CPT 0555Thigh
BONE STRENGTH AND FRACTURE RISK USING FINITE ELEMENT ANALYSIS OF FUNCTIONAL DATA AND BONE-MINERAL DENSITY UTILIZING DATA FROM A COMPUTED TOMOGRAPHY SCAN; RETRIEVAL AND TRANSMISSION OF THE SCAN DATA
Source: CMS coverage guidance
CPT 0554Thigh
BONE STRENGTH AND FRACTURE RISK USING FINITE ELEMENT ANALYSIS OF FUNCTIONAL DATA AND BONE-MINERAL DENSITY UTILIZING DATA FROM A COMPUTED TOMOGRAPHY SCAN; RETRIEVAL AND TRANSMISSION OF THE SCAN DATA, ASSESSMENT OF BONE STRENGTH AND FRACTURE RISK AND BONE-MINERAL DENSITY, INTERPRETATION AND REPORT
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
E23.0

Common synonyms

Hypopituitarism

Frequently asked questions

Code details

CodeE23.0
SystemICD10
Display nameHypopituitarism
ChapterEndocrine, nutritional and metabolic diseases (E00-E89)
BlockDisorders of other endocrine glands

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Ahumada-del Castillo syndromeBrissaud'sCachexiaCachexiaCachexiaCachexiaDecrease(d)Decrease(d)Decrease(d)Deficiency, deficientDeficiency, deficientDeficiency, deficient

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.