Billable / Specific Code
ICD-10-CM R85.610 is the diagnosis code for Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US). 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 billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where R85.610 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R85.610 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R85.610 is the ICD-10-CM diagnosis code for "Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of R85.610 is R85.61 ("Abnormal cytologic smear of anus"). R85.610 provides a more specific classification within this category.
R85.610 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.
Use R85.610 when the patients documented diagnosis matches "Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US)" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Atypical squamous cells of undetermined significance on cytologic smear of anus (ASC-US) is R85.610.
Yes, R85.610 can be used as a primary diagnosis code since it is billable and specific.
R85.610 is in Chapter 18 of the ICD-10-CM Tabular List.
Yes, R85.610 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.