Q51.820 — Cervical duplication
Q51.820 is a billable, specific ICD-10-CM code for cervical duplication. It is valid for submission on a claim.
Risk adjustment
Q51.820 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
Q51.820 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.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
How Q51.820 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 Q51.820.
- Double›cervix
- Duplication, duplex›cervix
Related codes at this level
Codes that share Q51.82. If Q51.820 is not quite right, the correct code is usually one of these.
Questions about Q51.820
- Is Q51.820 a billable ICD-10-CM code?
- Yes. Q51.820 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Q51.820 sit in the tabular list?
- Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations of genital organs (Q50-Q56).