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ICD-10-CM 2027 diagnosis code

R87.620Atypical squamous cells of undetermined significance on cytologic smear of vagina (ASC-US)

✓ Billable / specificFemale only

R87.620 is a valid, billable ICD-10-CM code for atypical squamous cells of undetermined significance on cytologic smear of vagina (asc-us). It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Atyp squam cell of undet signfc cyto smr vagn (ASC-US)

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R87.620

R87.620 is the ICD-10-CM diagnosis code for atypical squamous cells of undetermined significance on cytologic smear of vagina (ASC-US). It belongs to category R87 (abnormal findings in specimens from female genital organs), block R83-R89 (abnormal findings on examination of other body fluids, substances and tissues, without diagnosis) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within R87.62 (abnormal cytological findings in specimens from vagina), R87.620 is specifically for atypical squamous cells of undetermined significance on cytologic smear of vagina (ASC-US). Related codes cover atypical squamous cells cannot exclude high grade squamous intraepithelial lesion on cytologic smear of vagina (ASC-H) (R87.621), low grade squamous intraepithelial lesion on cytologic smear of vagina (LGSIL) (R87.622), high grade squamous intraepithelial lesion on cytologic smear of vagina (HGSIL) (R87.623), cytologic evidence of malignancy on smear of vagina (R87.624), unsatisfactory cytologic smear of vagina (R87.625), other abnormal cytological findings on specimens from vagina (R87.628) and unspecified abnormal cytological findings in specimens from vagina (R87.629).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is on the CMS list of diagnoses consistent only with female patients (the sex-conflict edit itself was retired in FY2025).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 795.11 (Papanicolaou smear of vagina with atypical squamous cells of undetermined significance (ASC-US)).

Notes that apply from higher levels

Instructions written at a parent level also apply to R87.620.

› From R87.62 Abnormal cytological findings in specimens from vagina
Excludes1
  • abnormal cytological findings in specimens from cervix uteri (R87.61-)
  • abnormal cytological findings in specimens from other female genital organs (R87.69)
  • carcinoma in situ of vagina (histologically confirmed) (D07.2)
  • vaginal intraepithelial neoplasia I [VAIN I] (N89.0)
  • vaginal intraepithelial neoplasia II [VAIN II] (N89.1)
  • vaginal intraepithelial neoplasia III [VAIN III] (D07.2)
  • dysplasia (mild) (moderate) of vagina (histologically confirmed) (N89.-)
  • severe dysplasia of vagina (histologically confirmed) (D07.2)
Excludes2
  • vaginal high risk human papillomavirus (HPV) DNA test positive (R87.811)
  • vaginal low risk human papillomavirus (HPV) DNA test positive (R87.821)
Use additional code
  • code to identify acquired absence of uterus and cervix, if applicable (Z90.71-)
› 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

Broader instructions also apply from R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis and Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to R87.620.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 795.11Papanicolaou smear of vagina with atypical squamous cells of undetermined significance (ASC-US)exact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about R87.620

Is R87.620 billable?

Yes. R87.620 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can R87.620 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict R87.620 as a principal diagnosis.

Is R87.620 a CC or MCC?

No. R87.620 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does R87.620 group to?

R87.620 is used in the MS-DRG v44.0 logic for MS-DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC), MS-DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC), MS-DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC) and MS-DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for R87.620?

The CMS General Equivalence Mappings map R87.620 to ICD-9-CM 795.11.