2026 ICD-10-CM Diagnosis Code D39.8Neoplasm of uncertain behavior of other specified female genital organs

ICD-10-CM CodesC00–D49D37-D48D39

ICD-10-CM D39.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D39.8 is a billable ICD-10-CM diagnosis code for neoplasm of uncertain behavior of other specified female genital organs. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 736 through 741, 754 through 756. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neoplasms of unspecified nature or uncertain behavior.

Code Identity

ICD-10-CM Code
D39.8
Billable Status
Yes — Valid for Submission
Code Describes
Neoplasm of uncertain behavior of other specified female genital organs
Short Description
Neoplasm of uncertain behavior of oth female genital organs
Parent Code
Neoplasm of uncertain behavior of female genital organs

Code Classification

ChapterC00–D49Neoplasms
SectionD37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
CategoryD39Neoplasm of uncertain behavior of female genital organs
This CodeD39.8Neoplasm of uncertain behavior of other specified female genital organs

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Lesion of clitoris
  • Neoplasm of clitoris
  • Neoplasm of labia majora
  • Neoplasm of labia minora
  • Neoplasm of parametrium
  • Neoplasm of round ligament of uterus
  • Neoplasm of uncertain behavior of broad ligament of uterus
  • Neoplasm of uncertain behavior of clitoris
  • Neoplasm of uncertain behavior of fallopian tube
  • Neoplasm of uncertain behavior of labia majora
  • Neoplasm of uncertain behavior of labia minora
  • Neoplasm of uncertain behavior of parametrium
  • Neoplasm of uncertain behavior of pelvic peritoneum
  • Neoplasm of uncertain behavior of round ligament of uterus
  • Neoplasm of uncertain behavior of soft tissues of pelvis
  • Neoplasm of uncertain behavior of uterine adnexa
  • Neoplasm of uncertain behavior of vagina
  • Neoplasm of uncertain behavior of vulva

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Neoplasm of uncertain behavior of skin of female genital organs

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO072
Neoplasms of unspecified nature or uncertain behavior
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Broad Ligament

    a broad fold of peritoneum that extends from the side of the uterus to the wall of the pelvis.
  • Internal Hernia

    a protrusion of an internal abdominal organ through a hole in an anatomical structure such as a muscle or a membrane. for instance, in paraduodenal hernia the small intestine herniates through an opening in the mesenteries. it includes intra-abdominal and diaphragmatic hernias. in abdominal hernia a protrusion occurs through a weak spot in the muscle of the abdominal wall.
  • Clitoris

    an erectile structure homologous with the penis, situated beneath the anterior labial commissure, partially hidden between the anterior ends of the labia minora.
  • Pudendal Nerve

    a nerve which originates in the sacral spinal cord (s2 to s4) and innervates the perineum, the external genitalia, the external anal sphincter and the external urethral sphincter. it has three major branches: the perineal nerve, inferior anal nerves, and the dorsal nerve of penis or clitoris.

Table of NeoplasmsClinical

Anatomical sites in the Table of Neoplasms that reference this code family.

SiteMalig.
Primary
Malig.
Secondary
Ca
in situ
BenignUncertainUnspec.
adnexa (uterine)C57.4C79.89D07.39D28.7D39.8D49.59
Bartholin's glandC51.0C79.82D07.1D28.0D39.8D49.59
broad ligamentC57.1C79.82D07.39D28.2D39.8D49.59
clitorisC51.2C79.82D07.1D28.0D39.8D49.59
fallopian tube (accessory)C57.0C79.82D07.39D28.2D39.8D49.59
fornix vaginaC52C79.82D07.2D28.1D39.8D49.59
fourchetteC51.9C79.82D07.1D28.0D39.8D49.59
Gartner's ductC52C79.82D07.2D28.1D39.8D49.59
genital organ or tract female NEC specified site NECC57.7C79.82D07.39D28.7D39.8D49.59
hymenC52C79.82D07.2D28.1D39.8D49.59
labia (skin)C51.9C79.82D07.1D28.0D39.8D49.59
labia (skin) majoraC51.0C79.82D07.1D28.0D39.8D49.59
labia (skin) minoraC51.1C79.82D07.1D28.0D39.8D49.59
labium (skin)C51.9C79.82D07.1D28.0D39.8D49.59
labium (skin) majusC51.0C79.82D07.1D28.0D39.8D49.59
labium (skin) minusC51.1C79.82D07.1D28.0D39.8D49.59
ligament [See Also: Neoplasm, connective tissue]C57.1C79.82D07.39D28.2D39.8D49.59
ligament [See Also: Neoplasm, connective tissue] broadC57.1C79.82D07.39D28.2D39.8D49.59
ligament [See Also: Neoplasm, connective tissue] Mackenrodt'sC57.7C79.82D07.39D28.7D39.8D49.59
ligament [See Also: Neoplasm, connective tissue] roundC57.2C79.82D28.2D39.8D49.59
ligament [See Also: Neoplasm, connective tissue] sacro-uterineC57.3C79.82D28.2D39.8D49.59
ligament [See Also: Neoplasm, connective tissue] uterineC57.3C79.82D28.2D39.8D49.59
ligament [See Also: Neoplasm, connective tissue] utero-ovarianC57.7C79.82D07.39D28.2D39.8D49.59
ligament [See Also: Neoplasm, connective tissue] uterosacralC57.3C79.82D28.2D39.8D49.59
Mackenrodt's ligamentC57.7C79.82D07.39D28.7D39.8D49.59
mesosalpinxC57.1C79.82D07.39D28.2D39.8D49.59
mesovariumC57.1C79.82D07.39D28.2D39.8D49.59
monsC51.9C79.82D07.1D28.0D39.8D49.59
mons pubisC51.9C79.82D07.1D28.0D39.8D49.59
mons venerisC51.9C79.82D07.1D28.0D39.8D49.59
Mullerian ductC57.7C79.82D07.39D28.7D39.8D49.59
Mullerian duct femaleC57.7C79.82D07.39D28.7D39.8D49.59
oviductC57.0C79.82D07.39D28.2D39.8D49.59
parametriumC57.3C79.82D28.2D39.8D49.59
paroophoronC57.1C79.82D07.39D28.2D39.8D49.59
parovariumC57.1C79.82D07.39D28.2D39.8D49.59
pudenda, pudendum (femaie)C51.9C79.82D07.1D28.0D39.8D49.59
round ligamentC57.2C79.82D28.2D39.8D49.59
sacrouterine ligamentC57.3C79.82D28.2D39.8D49.59
salpinx (uterine)C57.0C79.82D07.39D28.2D39.8D49.59
skin NOS clitorisC51.2C79.82D07.1D28.0D39.8D49.59
skin NOS female genital organs (external)C51.9C79.82D07.1D28.0D39.8D49.59
skin NOS female genital organs (external) clitorisC51.2C79.82D07.1D28.0D39.8D49.59
skin NOS female genital organs (external) labium NECC51.9C79.82D07.1D28.0D39.8D49.59
skin NOS female genital organs (external) labium NEC majusC51.0C79.82D07.1D28.0D39.8D49.59
skin NOS female genital organs (external) labium NEC minusC51.1C79.82D07.1D28.0D39.8D49.59
skin NOS female genital organs (external) pudendumC51.9C79.82D07.1D28.0D39.8D49.59
skin NOS female genital organs (external) vulvaC51.9C79.82D07.1D28.0D39.8D49.59
skin NOS labiaC51.0C79.82D07.1D28.0D39.8D49.59
skin NOS labia majoraC51.0C79.82D07.1D28.0D39.8D49.59
skin NOS labia minoraC51.1C79.82D07.1D28.0D39.8D49.59
skin NOS vulvaC51.9C79.82D07.1D28.0D39.8D49.59
tubo-ovarianC57.8C79.82D07.39D28.7D39.8D49.59
urethrovaginal (septum)C57.9C79.82D07.30D28.9D39.8D49.59
utero-ovarianC57.8C79.82D07.39D28.7D39.8D49.59
utero-ovarian ligamentC57.1C79.82D07.39D28.2D39.8D49.59
uterosacral ligamentC57.3C79.82D28.2D39.8D49.59
uterus, uteri, uterine adnexa NECC57.4C79.82D07.39D28.7D39.8D49.59
uterus, uteri, uterine ligamentC57.3C79.82D28.2D39.8D49.59
uterus, uteri, uterine ligament broadC57.1C79.82D07.39D28.2D39.8D49.59
uterus, uteri, uterine ligament roundC57.2C79.82D28.2D39.8D49.59
uterus, uteri, uterine tubeC57.0C79.82D07.39D28.2D39.8D49.59
vagina, vaginal (fornix) (vault) (wall)C52C79.82D07.2D28.1D39.8D49.59
vesicovaginal septumC57.9C79.82D07.30D28.9D39.8D49.59
vestibular gland, greaterC51.0C79.82D07.1D28.0D39.8D49.59
vulvaC51.9C79.82D07.1D28.0D39.8D49.59
vulvovaginal glandC51.0C79.82D07.1D28.0D39.8D49.59
wolffian (body) (duct)C57.7C79.82D07.39D28.7D39.8D49.59
wolffian (body) (duct) femaleC57.7C79.82D07.39D28.7D39.8D49.59

Patient EducationClinical

Ovarian Disorders

The ovaries are a pair of female reproductive glands that make eggs and female hormones. Women have one ovary on each side of the uterus (where a fetus grows during pregnancy). Each ovary is about the size and shape of an almond.

The full article covers:

  • What are ovaries?
  • What are the types of ovarian disorders?
  • What causes ovarian disorders?
  • What are the symptoms of ovarian disorders?
  • How are ovarian disorders diagnosed?
  • What are the treatments for ovarian disorders?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert D39.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
236.3 Unc behav neo female NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D39.8Overview

Is D39.8 (Neoplasm of uncertain behavior of female genital organs) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report neoplasm of uncertain behavior of other specified female genital organs on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D39.8 group to?

When neoplasm of uncertain behavior of other specified female genital organs is the principal diagnosis on an inpatient stay, it groups to MS-DRG 736, 737, 738, 739, 740, 741, 754, 755, 756, with relative weights from 0.9605 to 3.5745 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D39.8?

Under the General Equivalence Mappings, neoplasm of uncertain behavior of other specified female genital organs converts to ICD-9-CM 236.3 (unc behav neo female NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.