MCMCB Pro
Q43.7

Q43.7Persistent cloaca

Billable / specific codeICD-10-CMPOA exempt

Q43.7 is a billable, specific ICD-10-CM code for persistent cloaca. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Cloaca NOS

Other codes that can never be billed with Q43.7

These codes carry an Excludes1 note pointing at Q43.7. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q43.7 alone.

  • Q52.2Congenital rectovaginal fistula

Risk adjustment

Q43.7 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

Q43.7 is named in 3 Medicare coverage policies 3 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
  • A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
  • A56632Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy

How Q43.7 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 Q43.7.

  • Cloaca(persistent)
  • Persistence, persistentcloaca

Related codes at this level

Codes that share Q43. If Q43.7 is not quite right, the correct code is usually one of these.

Questions about Q43.7

Is Q43.7 a billable ICD-10-CM code?
Yes. Q43.7 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q43.7 sit in the tabular list?
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations of the digestive system (Q38-Q45).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.