ICD-10-CM C22.1 is the diagnosis code for Intrahepatic bile duct carcinoma. This code falls under the section "Malignant neoplasms of digestive organs" within Chapter 2 — Neoplasms (C00-D49). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as C22.1. They are mutually exclusive:
Understanding where C22.1 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, C22.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
C22.1 is the ICD-10-CM diagnosis code for "Intrahepatic bile duct carcinoma". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of C22.1 is C22 ("Malignant neoplasm of liver and intrahepatic bile ducts"). C22.1 provides a more specific classification within this category.
C22.1 is located in Section C15-C26 — "Malignant neoplasms of digestive organs" within Chapter 2 of the ICD-10-CM Tabular List.
Use C22.1 when the patients documented diagnosis matches "Intrahepatic bile duct carcinoma" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Intrahepatic bile duct carcinoma is C22.1.
Yes, C22.1 can be used as a primary diagnosis code since it is billable and specific.
C22.1 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for C22.1 include: malignant neoplasm of hepatic duct (C24.0).
Yes, C22.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.