2019 ICD-10-CM Diagnosis Code N80.1

Endometriosis of ovary

    2016 2017 2018 2019 Billable/Specific Code Female Dx
  • N80.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM N80.1 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of N80.1 - other international versions of ICD-10 N80.1 may differ.
ICD-10-CM Coding Rules
  • N80.1 is applicable to female patients.
The following code(s) above N80.1 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 N80.1:
  • N00-N99
    2019 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
Approximate Synonyms
  • Bilateral ovarian endometriosis
  • Endometriosis of left ovary
  • Endometriosis of right ovary
  • Endometriosis, ovary
  • Left ovarian endometriosis
  • Right ovarian endometriosis
Clinical Information
  • A non-neoplastic disorder characterized by the growth of endometrial tissue in the ovaries. It results in the development of blood filled ovarian cysts (chocolate cysts), and creation of scars and adhesions.
ICD-10-CM N80.1 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 742 Uterine and adnexa procedures for non-malignancy with cc/mcc
  • 743 Uterine and adnexa procedures for non-malignancy without cc/mcc
  • 760 Menstrual and other female reproductive system disorders with cc/mcc
  • 761 Menstrual and other female reproductive system disorders without cc/mcc

Convert N80.1 to ICD-9-CM

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
Code annotations containing back-references to N80.1:
  • Type 2 Excludes: D27
    ICD-10-CM Diagnosis Code D27

    Benign neoplasm of ovary

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 2 Excludes
    Use Additional
    • code to identify any functional activity.

Diagnosis Index entries containing back-references to N80.1:
  • Chocolate cyst N80.1 (ovary)
  • Cyst (colloid) (mucous) (simple) (retention)
    • chocolate N80.1 (ovary)
    • ovary, ovarian (twisted) N83.20-
      ICD-10-CM Diagnosis Code N83.20-

      Unspecified ovarian cysts

        2016 2017 - Deleted Code 2017 - New Code 2018 2019 Non-Billable/Non-Specific Code
      • chocolate N80.1
      • endometrial N80.1
    • Sampson's N80.1
  • Cystoma - see also Neoplasm, benign, by site
    • endometrial, ovary N80.1
  • Endometriosis N80.9
    ICD-10-CM Diagnosis Code N80.9

    Endometriosis, unspecified

      2016 2017 2018 2019 Billable/Specific Code Female Dx
    • ovary N80.1
  • Sampson's cyst or tumor N80.1
  • Transplants, ovarian, endometrial N80.1
  • Tumor - see also Neoplasm, unspecified behavior, by site
    • Sampson's N80.1

ICD-10-CM Codes Adjacent To N80.1
N76.5 Ulceration of vagina
N76.6 Ulceration of vulva
N76.8 Other specified inflammation of vagina and vulva
N76.81 Mucositis (ulcerative) of vagina and vulva
N76.89 Other specified inflammation of vagina and vulva
N77 Vulvovaginal ulceration and inflammation in diseases classified elsewhere
N77.0 Ulceration of vulva in diseases classified elsewhere
N77.1 Vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere
N80 Endometriosis
N80.0 Endometriosis of uterus
N80.1 Endometriosis of ovary
N80.2 Endometriosis of fallopian tube
N80.3 Endometriosis of pelvic peritoneum
N80.4 Endometriosis of rectovaginal septum and vagina
N80.5 Endometriosis of intestine
N80.6 Endometriosis in cutaneous scar
N80.8 Other endometriosis
N80.9 Endometriosis, unspecified
N81 Female genital prolapse
N81.0 Urethrocele
N81.1 Cystocele

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