ICD-10-CM Code D27.9

Benign neoplasm of unspecified ovary

Version 2020 Billable Code Diagnoses For Females Only

Valid for Submission

D27.9 is a billable code used to specify a medical diagnosis of benign neoplasm of unspecified ovary. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code D27.9 might also be used to specify conditions or terms like benign epithelial tumor of ovary, benign germ cell tumor of ovary, benign neoplasm of ovary, benign sex cord tumor of ovary, benign teratoma of ovary, brenner tumor of ovary, etc

The code D27.9 is applicable to female patients only. It is clinically and virtually impossible to use this code on a non-female patient.

Short Description:Benign neoplasm of unspecified ovary
Long Description:Benign neoplasm of unspecified ovary

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code D27.9 are found in the index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Diagnoses for females only - Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, this code applies to FEMALES only .


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Benign epithelial tumor of ovary
  • Benign germ cell tumor of ovary
  • Benign neoplasm of ovary
  • Benign sex cord tumor of ovary
  • Benign teratoma of ovary
  • Brenner tumor of ovary
  • Fibroma of ovary
  • Fibrothecoma of ovary
  • Germinal inclusion cyst of ovary
  • Hilus cell tumor of ovary
  • Hyperthyroidism due to struma ovarii
  • Mature solid teratoma of ovary
  • Meigs' syndrome
  • Mucinous cystadenoma of ovary
  • Mucinous cystadenoma of ovary in childhood
  • Noninflammatory disorder of ovary
  • Ovarian hilar cell hyperplasia
  • Serous cystadenoma of ovary
  • Serous cystadenoma of ovary in childhood
  • Serous papillary cystadenoma of ovary
  • Sertoli-Leydig cell tumor of ovary
  • Sex cord tumor of ovary
  • Sex cord tumor of ovary
  • Sex cord tumor of ovary
  • Sex cord tumor of ovary
  • Teratoma
  • Teratoma of ovary
  • Theca cell tumor of ovary

Diagnostic Related Groups

The ICD-10 code D27.9 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert D27.9 to ICD-9

  • 220 - Benign neoplasm ovary (Approximate Flag)

Code Classification

  • Neoplasms (C00–D48)
    • Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
      • Benign neoplasm of ovary (D27)

Code History

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

Information for Patients

Ovarian Cysts

The ovaries are part of the female reproductive system. They produce a woman's eggs and make female hormones. Ovarian cysts are fluid-filled sacs in or on an ovary. They usually form during ovulation, when the ovary releases an egg. They are usually harmless and go away by themselves. Most women have them sometime during their lives.

Most ovarian cysts are small and don't cause symptoms. Women may not find out that they have them until they have a pelvic exam. If there are symptoms, they may include

  • Pressure
  • Bloating
  • Swelling
  • Pain in the lower abdomen, on the side where the cyst is

If your health care provider finds a cyst, you may be able to wait to see if it gets bigger. You may need surgery if you have pain, are past menopause, or if the cyst does not go away. If a cyst bursts or causes bleeding, you should get medical help right away. Birth control pills can help prevent new cysts.

Rarely, ovarian cysts can become cancerous. This risk increases as you get older.

A health problem that involves ovarian cysts is polycystic ovary syndrome (PCOS). Women with PCOS can have high levels of male hormones, irregular or no periods, and small ovarian cysts.

Dept. of Health and Human Services Office on Women's Health

[Learn More]