Serum Magnesium
JE · Effective Mar 13, 2017
4 active Medicare policies list O09.291, and 1 commercial payer policy lists it. See each policy's status for the code and its official source. Listing a code is not a coverage decision: read each policy’s source for the requirements that apply.
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JE · Effective Mar 13, 2017
JF · Effective Mar 13, 2017
National · Effective Oct 1, 2026
National · Effective Nov 6, 2025
1 policy from 1 payer
Summary of the payer’s published policy. Not a coverage determination — confirm with the payer before submitting.
| Policy | Effective | Status of O09.291 |
|---|---|---|
| Maternity Ultrasound in the Outpatient Setting | Jan 6, 2026 | Covered |