R87.610 Atypical squamous cells of undetermined significance on cytologic smear of cervix (ASC-US)

Billable ICD-10-CM code, FY2026.

Applies from R87 Abnormal findings in specimens from female genital organs

Includes

• abnormal findings in secretion and smears from cervix uteri
• abnormal findings in secretion and smears from vagina
• abnormal findings in secretion and smears from vulva

Applies from R87.61 Abnormal cytological findings in specimens from cervix uteri

Excludes1 (never code together)

• abnormal cytological findings in specimens from other female genital organs (R87.69)
• abnormal cytological findings in specimens from vagina (R87.62-)
• carcinoma in situ of cervix uteri (histologically confirmed) (D06.-)
• cervical intraepithelial neoplasia I [CIN I] (N87.0)
• cervical intraepithelial neoplasia II [CIN II] (N87.1)
• cervical intraepithelial neoplasia III [CIN III] (D06.-)
• dysplasia (mild) (moderate) of cervix uteri (histologically confirmed) (N87.-)
• severe dysplasia of cervix uteri (histologically confirmed) (D06.-)

Excludes2 (not included here)

• cervical high risk human papillomavirus (HPV) DNA test positive (R87.810)
• cervical low risk human papillomavirus (HPV) DNA test positive (R87.820)

MS-DRG index

Defines the logic of DRG(s) 742-743 in MDC 13.

Approximate ICD-9-CM (GEMs)

• 795.01 Papanicolaou smear of cervix with atypical squamous cells of undetermined significance (ASC-US)

Code annotations containing back-references to R87.610

Back-references to R87.61

• Type 1 Excludes: N87 Dysplasia of cervix uteri ("abnormal results from cervical cytologic examination without histologic confirmation (R87.61-)")
• Type 1 Excludes: R87.62 Abnormal cytological findings in specimens from vagina ("abnormal cytological findings in specimens from cervix uteri (R87.61-)")

Diagnosis Index entries for R87.610

• Abnormal, abnormality, abnormalities › Papanicolaou (smear) › cervix › atypical squamous cells of undetermined significance (ASC-US)
• ASC-US (atypical squamous cells of undetermined significance on cytologic smear) › cervix

Nearby codes

• R87.3 Abnormal level of substances chiefly nonmedicinal as to source in specimens from female genital organs
• R87.4 Abnormal immunological findings in specimens from female genital organs
• R87.5 Abnormal microbiological findings in specimens from female genital organs
• R87.6 Abnormal cytological findings in specimens from female genital organs
• R87.61 Abnormal cytological findings in specimens from cervix uteri
• R87.610 Atypical squamous cells of undetermined significance on cytologic smear of cervix (ASC-US) (this code)
• R87.611 Atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of cervix (ASC-H)
• R87.612 Low grade squamous intraepithelial lesion on cytologic smear of cervix (LGSIL)
• R87.613 High grade squamous intraepithelial lesion on cytologic smear of cervix (HGSIL)
• R87.614 Cytologic evidence of malignancy on smear of cervix
• R87.615 Unsatisfactory cytologic smear of cervix