R85.61 – Abnormal cytologic smear of anus
ICD-10-CM 2027 diagnosis code · Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
- Code
R85.61(claims format:R8561)- Description
- Abnormal cytologic smear of anus
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- Block
- R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
- Parent codes
- R85 › R85.6
Billable codes under R85.61
R85.61 is a header code and cannot be used on claims. Choose the most specific code:
- R85.610 – Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US)Billable
- R85.611 – Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of anus (ASC-H)Billable
- R85.612 – Low grade squamous intraepithelial lesion on cytologic smear of anus (LGSIL)Billable
- R85.613 – High grade squamous intraepithelial lesion on cytologic smear of anus (HGSIL)Billable
- R85.614 – Cytologic evidence of malignancy on smear of anusBillable
- R85.615 – Unsatisfactory cytologic smear of anusBillable
- R85.616 – Satisfactory anal smear but lacking transformation zoneBillable
- R85.618 – Other abnormal cytological findings on specimens from anusBillable
- R85.619 – Unspecified abnormal cytological findings in specimens from anusBillable
Notes for R85.61
- 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)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
R85 – Abnormal findings in specimens from digestive organs and abdominal cavity
- abnormal findings in peritoneal fluid
- abnormal findings in saliva
Block R83-R89
- abnormal findings on antenatal screening of mother (O28.-)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
Related codes in R85.6
Frequently asked questions
What is ICD-10 code R85.61?
R85.61 is the ICD-10-CM code for abnormal cytologic smear of anus, in the block R83-R89 (Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis).
Is R85.61 a billable code?
No. R85.61 is a header code with more specific child codes; report one of the billable codes listed above.
What category does R85.61 belong to?
It belongs to category R85 – Abnormal findings in specimens from digestive organs and abdominal cavity.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.