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2025 ICD-10-CM code C53.1

Malignant neoplasm of the exocervix (outer opening of the cervix).

Use additional codes to identify any associated functional activity (Chapter 4) or morphology/histology (Chapter 2).For overlapping lesions, use subcategory .8 unless a specific combination code exists.

Medical necessity is established by the presence of a malignant neoplasm of the exocervix confirmed by diagnostic testing. Treatment is medically necessary to prevent further spread of the cancer and improve patient outcomes.

Diagnosis based on history, symptoms, and gynecological examination.Cystoscopy and proctoscopy may be used in advanced cases. Cervical biopsy is typically performed. Imaging tests like X-rays, CT scans, MRI, and PET scans aid in diagnosis and staging. Treatment depends on the stage and may include chemotherapy, radiation therapy, and surgery (simple or radical hysterectomy).

In simple words: Cancer of the outer part of the cervix (exocervix).

Malignant neoplasm of the exocervix (outer opening of the cervix).

Example 1: A 60-year-old female presents with postcoital bleeding and pelvic pain. After a pelvic exam and biopsy, she is diagnosed with a malignant neoplasm of the exocervix., A 45-year-old female with a history of HPV infection is diagnosed with a malignant neoplasm of the exocervix during a routine Pap smear and subsequent colposcopy., A 70-year-old female undergoes a radical hysterectomy for a malignant neoplasm of the exocervix that has spread to nearby lymph nodes.

Documentation should include evidence from gynecological examination, biopsy results, imaging reports, and operative notes (if surgery is performed). The stage of the cancer should be clearly documented.

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