Serum Magnesium
JE · Effective Mar 13, 2017
3 active Medicare policies list O21.0, and 2 commercial payer policies list 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.
Free account. Policy pages stay open to everyone.
JE · Effective Mar 13, 2017
JF · Effective Mar 13, 2017
National · Effective Oct 1, 2026
2 policies from 2 payers
Summary of the payer’s published policy. Not a coverage determination — confirm with the payer before submitting.
| Policy | Effective | Status of O21.0 |
|---|---|---|
| Maternity Ultrasound in the Outpatient Setting | Jan 6, 2026 | Covered |
| Policy | Effective | Status of O21.0 |
|---|---|---|
| Acupuncture | Apr 15, 2026 | Covered |