O99.511
O99.511 — Diseases of the respiratory system complicating pregnancy, first trimester
Billable / specific codeICD-10-CM
O99.511 is a billable, specific ICD-10-CM code for diseases of the respiratory system complicating pregnancy, first trimester. It is valid for submission on a claim.
Risk adjustment
O99.511 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
O99.511 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.
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Related codes at this level
Codes that share O99.51. If O99.511 is not quite right, the correct code is usually one of these.
Questions about O99.511
- Is O99.511 a billable ICD-10-CM code?
- Yes. O99.511 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O99.511 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).