Anal Cancer ICD-10-CM Codes

Get insights into the ICD-10-CM codes relevant for diagnosing and documenting anal cancer in 2023.

By Patricia Buenaventura on Feb 29, 2024.

Fact Checked by Ericka Pingol.

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Anal Cancer ICD-10-CM Codes

What ICD-10 Codes are Used for Anal Cancer?

Anal cancer is a rare form of cancer that begins in the anal canal. The ICD-10-CM coding system provides standardized codes for diagnosing and documenting anal cancer, which is important for accurate diagnosis, treatment planning, and medical billing. This guide aims to provide healthcare professionals with the ICD-10-CM codes commonly used for anal cancer.

Here are some commonly used ICD-10-CM codes for anal cancer:

C21.0: Malignant neoplasm of anus, unspecified

This code is used for cases where anal cancer is confirmed, but the specific subtype is not identified.

C21.1: Basal cell carcinoma of anus

This code is used specifically for basal cell carcinoma originating in the anal region.

C21.2: Transitional cell carcinoma of anus

This code is designated for transitional cell carcinoma occurring in the anal area.

C21.8: Malignant neoplasm of overlapping sites of rectum, anus, and anal canal

This code is used when the cancer overlaps multiple areas, including the rectum, anus, and anal canal.

Z85.038: Personal history of other malignant neoplasm of large intestine

This code is generally used to indicate a patient's history of anal or other forms of large intestine cancer, which is important for ongoing surveillance and treatment.

Which Anal Cancer ICD Codes are Billable:

  • C21.0: Yes
  • C21.1: Yes
  • C21.2: Yes
  • C21.8: Yes
  • Z85.038: Yes

Clinical Information

  • Anal cancer is often associated with Human Papillomavirus (HPV) infection.
  • Symptoms may include rectal bleeding, pain, or itching.
  • Diagnosis often involves a physical examination, imaging tests like MRI or CT scans, and biopsies.
  • Treatment typically involves a combination of chemotherapy, radiation therapy, and surgical intervention in some cases.
  • Prognosis varies depending on the stage at diagnosis and other individual health factors.

Synonyms Include

  • Anal Carcinoma
  • Cancer of the Anal Canal
  • Anal Squamous Cell Carcinoma
  • Malignant Tumor of the Anus
  • Anorectal Cancer
Medical Billing and Coding Software

Commonly asked questions

When to use an Anal Cancer ICD code?

For accurate diagnosis, treatment planning, and billing, ICD-10-CM codes for anal cancer should be used in medical documentation. They offer a standardized framework for healthcare providers to identify the condition.

What are the common treatments for Anal Cancer Diagnosis Codes?

Common treatments usually involve a multi-modal approach that includes radiation therapy, chemotherapy, and sometimes surgical tumor removal.

What does a diagnosis code for Anal Cancer mean?

A diagnosis code for anal cancer helps categorize the specific type of anal cancer, whether it's basal cell carcinoma, transitional cell carcinoma, or another type. These codes are essential for healthcare providers for standardized diagnosis and treatment planning and are crucial for billing and statistical tracking.

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