O99.820 — Streptococcus B carrier state complicating pregnancy
O99.820 is a billable, specific ICD-10-CM code for streptococcus b carrier state complicating pregnancy. It is valid for submission on a claim.
Risk adjustment
O99.820 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
O99.820 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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How O99.820 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to O99.820.
- Pregnancy›complicated by›streptococcus group B carrier state(GBS)
- Pregnancy›complicated by›infection›carrier state NEC›streptococcus B
Related codes at this level
Codes that share O99.82. If O99.820 is not quite right, the correct code is usually one of these.
Questions about O99.820
- Is O99.820 a billable ICD-10-CM code?
- Yes. O99.820 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O99.820 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Other obstetric conditions, not elsewhere classified (O94-O9A).