O29.293 — Other central nervous system complications of anesthesia during pregnancy, third trimester
O29.293 is a billable, specific ICD-10-CM code for other central nervous system complications of anesthesia during pregnancy, third trimester. It is valid for submission on a claim.
Excludes2 inherited from the categories above O29.293
Also inherited, and the opposite of Excludes1: these conditions are not part of O29.293, but a patient can have both, so you may code both.
Other codes that can never be billed with O29.293
These codes carry an Excludes1 note pointing at O29.293. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading O29.293 alone.
Risk adjustment
O29.293 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
O29.293 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57189Billing and Coding: Serum Magnesium
Code history
O29.293 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share O29.29. If O29.293 is not quite right, the correct code is usually one of these.
Questions about O29.293
- Is O29.293 a billable ICD-10-CM code?
- Yes. O29.293 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O29.293 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other maternal disorders predominantly related to pregnancy (O20-O29).