ICD-10-CM E28 is the diagnosis code for Ovarian dysfunction. 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 E28. They are mutually exclusive:
Understanding where E28 sits in the ICD-10-CM classification helps ensure proper coding:
No, E28 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
E28 is the ICD-10-CM diagnosis code for "Ovarian dysfunction". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
E28 is located in Section E20-E35 — "Disorders of other endocrine glands" within Chapter 4 of the ICD-10-CM Tabular List.
E28 has 6 sub-code(s) that provide more specific detail: E28.0, E28.1, E28.2, E28.3, E28.8 and more.
Use E28 when the patients documented diagnosis matches "Ovarian dysfunction" 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 Ovarian dysfunction is E28.
No, E28 is non-billable. Use a more specific sub-code for primary diagnosis billing.
E28 is in Chapter 4 of the ICD-10-CM Tabular List.
Type 1 Excludes for E28 include: isolated gonadotropin deficiency (E23.0); postprocedural ovarian failure (E89.4-).
Yes, E28 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.