Short answer · Medically reviewed summary · Last updated: 2026-05-08
Sheehan syndrome is classified under the ICD-10-CM code E23.0, which covers hypopituitarism, including postpartum pituitary necrosis. Under the older ICD-9-CM classification system, Sheehan syndrome was coded as 253.2. What is the clinical definition of Sheehan syndrome? Sheehan syndrome is a rare condition characterized by partial or total necrosis of the pituitary gland caused by severe blood loss and hypovolemic shock during or after childbirth.
Sheehan syndrome is classified under the ICD-10-CM code E23.0, which covers hypopituitarism, including postpartum pituitary necrosis. Under the older ICD-9-CM classification system, Sheehan syndrome was coded as 253.2.
Sheehan syndrome is a rare condition characterized by partial or total necrosis of the pituitary gland caused by severe blood loss and hypovolemic shock during or after childbirth. This sudden lack of blood flow leads to the destruction of pituitary cells, resulting in a permanent deficiency of one or more pituitary hormones. Because the pituitary gland is the "master gland," individuals with Sheehan syndrome often face lifelong challenges with thyroid, adrenal, and reproductive hormone regulation.
Diagnosis of Sheehan syndrome typically involves a combination of clinical history and biochemical testing. Clinicians look for a history of obstetric hemorrhage followed by symptoms such as the inability to lactate (agalactia), loss of axillary and pubic hair, and persistent fatigue. Common diagnostic steps include:
Early identification is critical because untreated Sheehan syndrome can lead to adrenal crisis, a life-threatening emergency caused by severe cortisol deficiency. Among the 21 members of the DiseaseMaps.org community living with Sheehan syndrome, many report that the diagnostic journey was complex due to the vague nature of early symptoms, such as fatigue and low blood pressure. Proper management usually requires lifelong hormone replacement therapy tailored to the specific deficits identified in each patient.
Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician with any questions regarding a medical condition.