ICD-10 Code E20.8 – Other hypoparathyroidism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E20.8 – Other hypoparathyroidism
What it is
This code identifies hypoparathyroidism that does not fit a more specific ICD-10-CM category. It means the parathyroid glands are underactive, but the record does not support a different named form.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include symptoms of low calcium such as muscle cramps, tingling, or tetany, but you should code only what is documented and supported.
When to use this code
Use E20.8 when the provider documents hypoparathyroidism and does not specify postsurgical, idiopathic, or other listed subtypes. It also fits cases labeled as “other hypoparathyroidism” in the assessment. If the note is unclear, check documentation before assigning the code.
Do not use for
Do not use this code when the record clearly identifies a different hypoparathyroidism category, such as postsurgical or idiopathic. Do not use it for unrelated calcium disorders without documented parathyroid underactivity.
Coding tip
Match the code to the provider’s exact wording and confirm that no more specific hypoparathyroidism type is documented.