Billable / Specific Code
ICD-10-CM R87.621 is the diagnosis code for Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of vagina (ASC-H). 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 R87.621 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R87.621 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R87.621 is the ICD-10-CM diagnosis code for "Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of vagina (ASC-H)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of R87.621 is R87.62 ("Abnormal cytological findings in specimens from vagina"). R87.621 provides a more specific classification within this category.
R87.621 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 R87.621 when the patients documented diagnosis matches "Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of vagina (ASC-H)" 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 cannot exclude high grade squamous intraepithelial lesion on cytologic smear of vagina (ASC-H) is R87.621.
Yes, R87.621 can be used as a primary diagnosis code since it is billable and specific.
R87.621 is in Chapter 18 of the ICD-10-CM Tabular List.
Yes, R87.621 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.