2021 ICD-10-CM Code D05

Carcinoma in situ of breast

Version 2021

Not Valid for Submission

D05 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of carcinoma in situ of breast. The code is not specific and is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:D05
Short Description:Carcinoma in situ of breast
Long Description:Carcinoma in situ of breast

Code Classification

Specific Coding for Carcinoma in situ of breast

Non-specific codes like D05 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for carcinoma in situ of breast:

  • NON-BILLABLE CODE - D05.0 for Lobular carcinoma in situ of breast
  • BILLABLE CODE - Use D05.00 for Lobular carcinoma in situ of unspecified breast
  • BILLABLE CODE - Use D05.01 for Lobular carcinoma in situ of right breast
  • BILLABLE CODE - Use D05.02 for Lobular carcinoma in situ of left breast
  • NON-BILLABLE CODE - D05.1 for Intraductal carcinoma in situ of breast
  • BILLABLE CODE - Use D05.10 for Intraductal carcinoma in situ of unspecified breast
  • BILLABLE CODE - Use D05.11 for Intraductal carcinoma in situ of right breast
  • BILLABLE CODE - Use D05.12 for Intraductal carcinoma in situ of left breast
  • NON-BILLABLE CODE - D05.8 for Other specified type of carcinoma in situ of breast
  • BILLABLE CODE - Use D05.80 for Other specified type of carcinoma in situ of unspecified breast
  • BILLABLE CODE - Use D05.81 for Other specified type of carcinoma in situ of right breast
  • BILLABLE CODE - Use D05.82 for Other specified type of carcinoma in situ of left breast
  • NON-BILLABLE CODE - D05.9 for Unspecified type of carcinoma in situ of breast
  • BILLABLE CODE - Use D05.90 for Unspecified type of carcinoma in situ of unspecified breast
  • BILLABLE CODE - Use D05.91 for Unspecified type of carcinoma in situ of right breast
  • BILLABLE CODE - Use D05.92 for Unspecified type of carcinoma in situ of left breast

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code D05:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Information for Patients


Breast Cancer

Breast cancer affects one in eight women during their lives. No one knows why some women get breast cancer, but there are many risk factors. Risks that you cannot change include

Other risks include obesity, using hormone replacement therapy (also called menopausal hormone therapy), taking birth control pills, drinking alcohol, not having children or having your first child after age 35, and having dense breasts.

Symptoms of breast cancer may include a lump in the breast, a change in size or shape of the breast, and discharge from a nipple. Breast self-exams and mammography can help find breast cancer early, when it is most treatable. One possible treatment is surgery. It could be a lumpectomy or a mastectomy. Other treatments include radiation therapy, chemotherapy, hormone therapy, and targeted therapy. Targeted therapy uses substances that attack cancer cells without harming normal cells.

Men can have breast cancer, too, but it is rare.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)