Non-Billable / Non-Specific Code
ICD-10-CM E23 is the diagnosis code for Hypofunction and other disorders of the pituitary gland. This code falls under the section "Disorders of other endocrine glands" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as E23. They are mutually exclusive:
Understanding where E23 sits in the ICD-10-CM classification helps ensure proper coding:
No, E23 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
E23 is the ICD-10-CM diagnosis code for "Hypofunction and other disorders of the pituitary gland". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
E23 is located in Section E20-E35 — "Disorders of other endocrine glands" within Chapter 4 of the ICD-10-CM Tabular List.
E23 has 6 sub-code(s) that provide more specific detail: E23.0, E23.1, E23.2, E23.3, E23.6 and more.
Use E23 when the patients documented diagnosis matches "Hypofunction and other disorders of the pituitary gland" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Hypofunction and other disorders of the pituitary gland is E23.
No, E23 is non-billable. Use a more specific sub-code for primary diagnosis billing.
E23 is in Chapter 4 of the ICD-10-CM Tabular List.
Type 1 Excludes for E23 include: postprocedural hypopituitarism (E89.3); short stature due to endocrine disorder (E34.3-).
Yes, E23 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.