R85.61
Non-Billable

Abnormal cytologic smear of anus

Non-Billable / Non-Specific Code

What is Abnormal cytologic smear of anus?

ICD-10-CM R85.61 is the diagnosis code for Abnormal cytologic smear of anus. This code falls under the section "Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1
â„šī¸ Excludes2

Coding Guidelines for R85.61

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as R85.61. They are mutually exclusive:

  • 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)

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in R85.61. If the patient has both, code each condition separately:

  • anal high risk human papillomavirus (HPV) DNA test positive (R85.81)
  • anal low risk human papillomavirus (HPV) DNA test positive (R85.82)

ICD-10-CM Code Hierarchy

Understanding where R85.61 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 9 entries
R85.610Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US)BillableR85.611Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of anus (ASC-H)BillableR85.612Low grade squamous intraepithelial lesion on cytologic smear of anus (LGSIL)BillableR85.613High grade squamous intraepithelial lesion on cytologic smear of anus (HGSIL)BillableR85.614Cytologic evidence of malignancy on smear of anusBillableR85.615Unsatisfactory cytologic smear of anusBillableR85.616Satisfactory anal smear but lacking transformation zoneBillableR85.618Other abnormal cytological findings on specimens from anusBillableR85.619Unspecified abnormal cytological findings in specimens from anusBillable
Related Codes

Frequently Asked Questions

Is R85.61 a billable ICD-10-CM code?

No, R85.61 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does R85.61 mean?

R85.61 is the ICD-10-CM diagnosis code for "Abnormal cytologic smear of anus". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of R85.61?

The parent code of R85.61 is R85.6 ("Abnormal cytological findings in specimens from digestive organs and abdominal cavity"). R85.61 provides a more specific classification within this category.

What section is R85.61 in?

R85.61 is located in Section R83-R89 — "Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis" within Chapter 18 of the ICD-10-CM Tabular List.

What are the sub-codes of R85.61?

R85.61 has 9 sub-code(s) that provide more specific detail: R85.610, R85.611, R85.612, R85.613, R85.614 and more.

When should I use R85.61?

Use R85.61 when the patients documented diagnosis matches "Abnormal cytologic smear of anus" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Abnormal cytologic smear of anus?

The ICD-10-CM code for Abnormal cytologic smear of anus is R85.61.

Can R85.61 be used for primary diagnosis?

No, R85.61 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is R85.61 in?

R85.61 is in Chapter 18 of the ICD-10-CM Tabular List.

What conditions are excluded from R85.61?

Type 1 Excludes for R85.61 include: 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) and more.

Is R85.61 valid for 2026?

Yes, R85.61 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousR85.6Abnormal cytological findings in specimens from digestive organs and abdominal cavityNext →R85.610Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US)
Code Details
R85.61
Abnormal cytologic smear of anus
Non-Billable / Non-Specific Code
18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
R83-R89 — Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
2026 ICD-10-CM