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    v1.0.28
    OpenPayerBilling CodesNoninflammatory disorders of female genital tractICD-10-CM n80-endometriosis
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    ICD-10-CM Code For Endometriosis: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group N80 includes diagnoses for endometriosis and its anatomic variants, covering lesions on the ovary, fallopian tube, pelvic peritoneum, rectovaginal septum, bladder, and other specified sites as well as unspecified endometriosis. These ICD-10-CM diagnosis codes are used to document clinical scenarios such as chronic pelvic pain, infertility evaluation, surgical findings, and extent of organ involvement. Accurate coding within the ICD-10-CM N80 group supports proper claim adjudication and complete clinical documentation and appropriate reimbursement.

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    ICD-10-CM N80: Endometriosis Overview

    The ICD-10-CM N80 group includes diagnostic codes for endometriosis, a condition in which endometrial-like tissue is present outside the uterus and causes pelvic pain, infertility, and other gynecologic symptoms. These codes target the female reproductive system and specify lesion location and extension. Accurate coding matters for appropriate clinical documentation and reimbursement because specificity influences claim processing and care continuity.

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    When to Use

    Use codes from this group when documenting a diagnosis of endometriosis based on clinical evaluation, imaging, or surgical findings that identify lesion location or involvement. These codes are appropriate for encounters addressing pelvic pain, infertility workup, operative reports, and ongoing management related to endometriosis.

    ICD-10-CM Codes

    138 rows

    ICD-10-CM CodeDescription
    N80.00Endometriosis of the uterus, unspecified
    N80.01Superficial endometriosis of the uterus
    N80.02Deep endometriosis of the uterus
    N80.03Adenomyosis of the uterus
    N80.101Endometriosis of right ovary, unspecified depth
    N80.102Endometriosis of left ovary, unspecified depth
    N80.103Endometriosis of bilateral ovaries, unspecified depth
    N80.109Endometriosis of ovary, unspecified side, unspecified depth
    N80.111Superficial endometriosis of right ovary
    N80.112Superficial endometriosis of left ovary
    N80.113Superficial endometriosis of bilateral ovaries
    N80.119Superficial endometriosis of ovary, unspecified ovary
    N80.121Deep endometriosis of right ovary
    N80.122Deep endometriosis of left ovary
    N80.123Deep endometriosis of bilateral ovaries
    N80.129Deep endometriosis of ovary, unspecified ovary
    N80.201Endometriosis of right fallopian tube, unspecified depth
    N80.202Endometriosis of left fallopian tube, unspecified depth
    N80.203Endometriosis of bilateral fallopian tubes, unspecified depth
    N80.209Endometriosis of unspecified fallopian tube, unspecified depth

    Showing 1–20 of 138

    DRG Codes

    13 rows

    DRG CodeDescription
    205Other Respiratory System Diagnoses with MCC
    206Other Respiratory System Diagnoses without MCC
    391Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC
    392Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC
    606Minor Skin Disorders with MCC
    607Minor Skin Disorders without MCC
    698Other Kidney and Urinary Tract Diagnoses with MCC
    699Other Kidney and Urinary Tract Diagnoses with CC
    700Other Kidney and Urinary Tract Diagnoses without CC/MCC
    742Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC
    743Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC
    760Menstrual and Other Female Reproductive System Disorders with CC/MCC
    761Menstrual and Other Female Reproductive System Disorders without CC/MCC

    Typical Clinical Scenarios

    • A 28-year-old woman with several years of progressively worse dysmenorrhea and deep dyspareunia presents to gynecology for evaluation after failure of first-line NSAIDs and hormonal contraception; pelvic exam reveals adnexal tenderness and an ultrasound shows an ovarian endometriotic cyst consistent with an endometrioma, so a localized ovary-involving diagnosis is assigned. Typical codes: N80.11, N80.111.
    • A 42-year-old patient presents to the emergency department with acute-onset severe lower abdominal pain and signs of peritoneal irritation; imaging demonstrates ruptured endometriotic cyst with hemoperitoneum requiring urgent surgical management, leading to assignment of a code indicating endometriosis of ovary with acute complication. Typical codes: N80.12, N80.121.
    • A 35-year-old woman with known pelvic endometriosis reports chronic pelvic pain and infertility; laparoscopy documents extensive adhesions and endometriotic implants on the pelvic peritoneum and fallopian tubes, so codes reflecting multiple sites and tubal involvement are used to capture chronic disease and infertility-related pathology. Typical codes: N80.6, N80.2

    Related Codes

    N81-FEMALE-GENITAL-PROLAPSE

    ICD-10-CM Code For Female Genital Prolapse: Group Overview

    N82-FISTULAE-INVOLVING-FEMALE-GENITAL-TRACT

    ICD-10-CM Code For Fistulae Involving Female Genital Tract: Group Overview

    N83-NONINFLAMMATORY-DISORDERS-OF-OVARY

    ICD-10-CM Code For Noninflammatory Disorders Of Ovary Fallopian Tube And Broad Ligament: Group Overview

    N84-POLYP-OF-FEMALE-GENITAL-TRACT

    ICD-10-CM Code For Polyp Of Female Genital Tract: Group Overview

    N85-OTHER-NONINFLAMMATORY-DISORDERS-OF-UTERUS

    ICD-10-CM Code For Other Noninflammatory Disorders Of Uterus Except Cervix: Group Overview

    N86-EROSION-AND-ECTROPION-OF-CERVIX-UTERI

    ICD-10-CM Code For Erosion And Ectropion Of Cervix Uteri: Group Overview

    N87-DYSPLASIA-OF-CERVIX-UTERI

    ICD-10-CM Code For Dysplasia Of Cervix Uteri: Group Overview

    N88-OTHER-NONINFLAMMATORY-DISORDERS-OF-CERVIX-UTERI

    ICD-10-CM Code For Other Noninflammatory Disorders Of Cervix Uteri: Group Overview

    N89-OTHER-NONINFLAMMATORY-DISORDERS-OF-VAGINA

    ICD-10-CM Code For Other Noninflammatory Disorders Of Vagina: Group Overview

    N90-OTHER-NONINFLAMMATORY-VULVAR-DISORDERS

    ICD-10-CM Code For Other Noninflammatory Disorders Of Vulva And Perineum: Group Overview

    Showing 1–10 of 18

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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