ICD-10 Code for Hypocalcemia

The ICD-10-CM code for hypocalcemia is E83.51 — Hypocalcemia. This is the code the Alphabetic Index gives for hypocalcemia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

Billable

Which hypocalcemia code should you use?

The Alphabetic Index lists 5 codes under Hypocalcemia. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

autosomal dominant	E20.810	Autosomal dominant hypocalcemia
dietary	E58	Dietary calcium deficiency
neonatal	P71.1	Other neonatal hypocalcemia
phosphate-loading	P71.1	Other neonatal hypocalcemia

Hypocalcemia autosomal dominant

type 1	E20.810	Autosomal dominant hypocalcemia
type 2	E20.810	Autosomal dominant hypocalcemia

Hypocalcemia neonatal

due to cow's milk

P71.0

Cow's milk hypocalcemia in newborn

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources