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ICD-10-CM 2027 diagnosis code

D06.1Carcinoma in situ of exocervix

✓ Billable / specificFemale only

D06.1 is a valid, billable ICD-10-CM code for carcinoma in situ of exocervix. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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 D06.1

D06.1 is the ICD-10-CM diagnosis code for carcinoma in situ of exocervix. It belongs to category D06 (carcinoma in situ of cervix uteri), block D00-D09 (in situ neoplasms) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within D06 (carcinoma in situ of cervix uteri), D06.1 is specifically for carcinoma in situ of exocervix. Related codes cover endocervix (D06.0), other parts of cervix (D06.7) and cervix, unspecified (D06.9).

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 731 (Uterine and Adnexa Procedures for Malignancy with MCC, relative weight 3.5478), DRG 732 (Uterine and Adnexa Procedures for Malignancy with CC, relative weight 1.9208), DRG 733 (Uterine and Adnexa Procedures for Malignancy without CC/MCC, relative weight 1.4324), DRG 754 (Malignancy, Female Reproductive System with MCC, relative weight 1.8092), DRG 755 (Malignancy, Female Reproductive System with CC, relative weight 1.149) and DRG 756 (Malignancy, Female Reproductive System without CC/MCC, relative weight 0.8645), 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 233.1 (carcinoma in situ of cervix uteri).

Notes that apply from higher levels

Instructions written at a parent level also apply to D06.1.

› From D06 Carcinoma in situ of cervix uteri
Includes
  • cervical adenocarcinoma in situ
  • cervical intraepithelial glandular neoplasia
  • cervical intraepithelial neoplasia III [CIN III]
  • severe dysplasia of cervix uteri
Excludes1
  • cervical intraepithelial neoplasia II [CIN II] (N87.1)
  • cytologic evidence of malignancy of cervix without histologic confirmation (R87.614)
  • high grade squamous intraepithelial lesion (HGSIL) of cervix (R87.613)
  • melanoma in situ of cervix (D03.5)
  • moderate cervical dysplasia (N87.1)

Broader instructions also apply from D00-D09 In situ neoplasms and Chapter 2: Neoplasms.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to D06.1.

Table of Drugs & Neoplasms entries

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 →
  • 233.1Carcinoma in situ of cervix uteriapproximate

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 D06.1

Is D06.1 billable?

Yes. D06.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can D06.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict D06.1 as a principal diagnosis.

Is D06.1 a CC or MCC?

No. D06.1 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does D06.1 group to?

D06.1 is used in the MS-DRG v44.0 logic for MS-DRG 731 (Uterine and Adnexa Procedures for Malignancy with MCC), MS-DRG 732 (Uterine and Adnexa Procedures for Malignancy with CC), MS-DRG 733 (Uterine and Adnexa Procedures for Malignancy without CC/MCC), MS-DRG 754 (Malignancy, Female Reproductive System with MCC), MS-DRG 755 (Malignancy, Female Reproductive System with CC) and MS-DRG 756 (Malignancy, Female Reproductive System 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 D06.1?

The CMS General Equivalence Mappings map D06.1 to ICD-9-CM 233.1.