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ICD-10 Guide
ICD-10 CodesR85.61

R85.61

Abnormal cytologic smear of anus

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R85.61 is a billable code used to indicate a diagnosis of abnormal cytologic smear of anus.

Key Diagnostic Point:

An abnormal cytologic smear of the anus indicates the presence of atypical cells in the anal region, which may suggest underlying pathology such as dysplasia or malignancy. This finding is typically identified through a Pap smear or anal cytology test, which is performed to screen for anal cancer or precancerous conditions. Symptoms may include anal discomfort, bleeding, or changes in bowel habits, although many patients may be asymptomatic. The abnormal results necessitate further evaluation, including possible biopsy or additional imaging studies, to determine the underlying cause. Common causes of abnormal findings include human papillomavirus (HPV) infection, which is a significant risk factor for anal dysplasia and cancer. Other potential causes may include inflammatory conditions or previous history of anal lesions. The diagnostic approach often involves correlating cytological findings with clinical symptoms and history, as well as considering risk factors such as immunosuppression or history of anal intercourse. Accurate diagnosis and management are crucial to prevent progression to more severe conditions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in cytology interpretation
  • Need for correlation with clinical findings
  • Potential for multiple underlying causes
  • Documentation of patient history and risk factors

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to document follow-up actions taken
  • Misinterpretation of cytology results
  • Lack of patient history related to risk factors

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed patient history, including risk factors and symptoms, must be documented. Follow-up plans and any referrals for further evaluation should also be noted.

Common Clinical Scenarios

Patients presenting with abnormal anal symptoms or routine screening in high-risk populations.

Billing Considerations

Consideration of comorbidities and immunosuppression status is essential for accurate coding.

Emergency Medicine

Documentation Requirements

Acute care documentation must include presenting symptoms, initial assessment findings, and any immediate interventions performed.

Common Clinical Scenarios

Patients presenting with acute anal pain or bleeding, requiring urgent evaluation.

Billing Considerations

Rapid assessment and documentation of findings are critical in emergency settings.

Coding Guidelines

Inclusion Criteria

Use R85.61 When
  • Coders should refer to the official ICD
  • CM guidelines for coding and reporting, ensuring that the code is used in conjunction with appropriate clinical documentation and any relevant procedures performed

Exclusion Criteria

Do NOT use R85.61 When
No specific exclusions found.

Related CPT Codes

88141CPT Code

Cytopathology, cervical or vaginal, any specimen, screening

Clinical Scenario

Used in conjunction with R85.61 when performing anal cytology screening.

Documentation Requirements

Documentation of the specimen type and site, as well as the reason for the cytology test.

Specialty Considerations

Ensure that the procedure is performed by qualified personnel and that results are communicated effectively.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of abnormal cytologic findings, improving the ability to track and manage these conditions effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of abnormal cytologic findings, improving the ability to track and manage these conditions effectively.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of abnormal cytologic findings, improving the ability to track and manage these conditions effectively.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What does an abnormal cytologic smear of the anus indicate?

An abnormal cytologic smear of the anus may indicate the presence of atypical cells, which could suggest dysplasia or malignancy, often related to HPV infection.

How should I document an abnormal cytologic smear?

Documentation should include the patient's history, symptoms, the results of the cytology test, and any follow-up actions taken, such as referrals or additional testing.