2021 ICD-10-CM Diagnosis Code N85.0

Endometrial hyperplasia

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • N85.0 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM N85.0 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of N85.0 - other international versions of ICD-10 N85.0 may differ.
The following code(s) above N85.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to N85.0:
  • N00-N99
    2021 ICD-10-CM Range N00-N99

    Diseases of the genitourinary system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the genitourinary system
  • N85
    ICD-10-CM Diagnosis Code N85

    Other noninflammatory disorders of uterus, except cervix

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • endometriosis (N80.-)
    • inflammatory diseases of uterus (N71.-)
    • noninflammatory disorders of cervix, except malposition (N86-N88)
    • polyp of corpus uteri (N84.0)
    • uterine prolapse (N81.-)
    Other noninflammatory disorders of uterus, except cervix
Clinical Information
  • A benign form of endometrial hyperplasia with crowded endometrial glands and little stroma between the glands. Complex hyperplasia has low risk of progression to endometrial carcinoma.
  • A proliferation of the endometrial cells resulting in glandular enlargement and budding. The proliferation may or may not be associated with atypia of the endometrial cells. When the hyperplastic changes are excessive, there is formation of complex epithelial structures (complex endometrial hyperplasia).
  • An abnormal overgrowth of the endometrium (the layer of cells that lines the uterus). There are four types of endometrial hyperplasia: simple endometrial hyperplasia, complex endometrial hyperplasia, simple endometrial hyperplasia with atypia, and complex endometrial hyperplasia with atypia. These differ in terms of how abnormal the cells are and how likely it is that the condition will become cancer.
  • Benign proliferation of the endometrium in the uterus. Endometrial hyperplasia is classified by its cytology and glandular tissue. There are simple, complex (adenomatous without atypia), and atypical hyperplasia representing also the ascending risk of becoming malignant.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to N85.0:
  • Type 1 Excludes: N71
    , N84.0
    ICD-10-CM Diagnosis Code N71

    Inflammatory disease of uterus, except cervix

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • endo (myo) metritis
    • metritis
    • myometritis
    • pyometra
    • uterine abscess
    Type 1 Excludes
    • hyperplastic endometritis (N85.0-)
    • infection of uterus following delivery (O85, O86.-)
    Use Additional
    • code (B95-B97), to identify infectious agent
    ICD-10-CM Diagnosis Code N84.0

    Polyp of corpus uteri

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Polyp of endometrium
    • Polyp of uterus NOS
    Type 1 Excludes
    • polypoid endometrial hyperplasia (N85.0-)
ICD-10-CM Codes Adjacent To N85.0
N83.8 Other noninflammatory disorders of ovary, fallopian tube and broad ligament
N83.9 Noninflammatory disorder of ovary, fallopian tube and broad ligament, unspecified
N84 Polyp of female genital tract
N84.0 Polyp of corpus uteri
N84.1 Polyp of cervix uteri
N84.2 Polyp of vagina
N84.3 Polyp of vulva
N84.8 Polyp of other parts of female genital tract
N84.9 Polyp of female genital tract, unspecified
N85 Other noninflammatory disorders of uterus, except cervix
N85.0 Endometrial hyperplasia
N85.00 …… unspecified
N85.01 Benign endometrial hyperplasia
N85.02 Endometrial intraepithelial neoplasia [EIN]
N85.2 Hypertrophy of uterus
N85.3 Subinvolution of uterus
N85.4 Malposition of uterus
N85.5 Inversion of uterus
N85.6 Intrauterine synechiae
N85.7 Hematometra
N85.8 Other specified noninflammatory disorders of uterus

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.