R85.61
R85.61: Abnormal cytologic smear of anus
Non-billable headerICD-10-CM
R85.61 is a non-billable header ICD-10-CM code for abnormal cytologic smear of anus. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- abnormal cytological findings in specimens from other digestive organs and abdominal cavity (R85.69)
- carcinoma in situ of anus (histologically confirmed) (D01.3)
- anal intraepithelial neoplasia I [AIN I] (K62.82)
- anal intraepithelial neoplasia II [AIN II] (K62.82)
- anal intraepithelial neoplasia III [AIN III] (D01.3)
- dysplasia (mild) (moderate) of anus (histologically confirmed) (K62.82)
- severe dysplasia of anus (histologically confirmed) (D01.3)
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Other codes that can never be billed with R85.61
Their own Excludes1 notes name this code, so the conflict is not listed above.
- K62.82Dysplasia of anus
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead R85.61
9 child codes. Green means billable.
- R85.610Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US)
- R85.611Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of anus (ASC-H)
- R85.612Low grade squamous intraepithelial lesion on cytologic smear of anus (LGSIL)
- R85.613High grade squamous intraepithelial lesion on cytologic smear of anus (HGSIL)
- R85.614Cytologic evidence of malignancy on smear of anus
- R85.615Unsatisfactory cytologic smear of anus
- R85.616Satisfactory anal smear but lacking transformation zone
- R85.618Other abnormal cytological findings on specimens from anus
- R85.619Unspecified abnormal cytological findings in specimens from anus