ICD10

ICD-10 Code R85.61: Abnormal cytologic smear of anus

R85.61 is an ICD-10 diagnosis entry used to group records related to Abnormal cytologic smear of anus. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

When is it used?

  • May be used when a clinician documents abnormal cytologic smear of anus in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
block
R83-R89Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
category
R85Abnormal findings in specimens from digestive organs and abdominal cavity
category
R85.6Abnormal cytological findings in specimens from digestive organs and abdominal cavity
currentR85.6

Official coding notes

Excludes1 (do not code together)
  • 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 (may code together if documented)
  • anal high risk human papillomavirus (HPV) DNA test positive (R85.81)
  • anal low risk human papillomavirus (HPV) DNA test positive (R85.82)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

General PhysicianENT Specialist

Coding guidelines

Common synonyms

Abnormal cytologic smear of anus

Frequently asked questions

Code details

CodeR85.61
SystemICD10
Display nameAbnormal cytologic smear of anus
ChapterSymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
BlockAbnormal findings on examination of other body fluids, substances and tissues, without diagnosis

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code R85.61 for Abnormal cytologic smear of anus | HealthAssure