ICD-10 Code E89.2 – Postprocedural hypoparathyroidism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E89.2 – Postprocedural hypoparathyroidism
What it is
E89.2 identifies hypoparathyroidism that develops after a procedure, most often surgery involving the thyroid or parathyroid glands. It means the parathyroid glands no longer produce enough hormone after the intervention.
Clinical signs
Clinical features may include symptoms of low calcium such as tingling, muscle cramps, or tetany. Check documentation for postoperative hypocalcemia, reduced parathyroid function, or a provider diagnosis linking the condition to the procedure.
When to use this code
Use E89.2 when the record clearly states hypoparathyroidism occurred after surgery or another procedure. It is appropriate when the provider documents the condition as postoperative, postprocedural, or due to surgical loss or damage of parathyroid function.
Do not use it for transient postoperative calcium changes unless the provider diagnoses hypoparathyroidism. If the cause is unclear, you should verify the documentation before coding.
Do not use for
Do not use E89.2 for hypoparathyroidism that is congenital, idiopathic, or caused by another nonprocedural condition. Also avoid it when only abnormal calcium labs are documented without a diagnosis.
Coding tip
Look for explicit provider wording that ties hypoparathyroidism to the procedure before assigning E89.2.