Is ICD-10-CM code C11 billable?

No, C11 (Malignant neoplasm of nasopharynx) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code C11 belong to?

C11 belongs to Chapter 2 of the ICD-10-CM tabular list: C00–D49 (Neoplasms).

C11

Non-Billable

ChapterC00–D49

Rankcategory

Description

Malignant neoplasm of nasopharynx

About ICD-10-CM code C11

Under C00-D49 Neoplasms, within Malignant neoplasms of lip, oral cavity and pharynx (C00-C14), ICD-10-CM code C11 describes Malignant neoplasm of nasopharynx. This code cannot be billed directly because more specific child codes exist beneath it.

Use a more specific code (6 billable)

C11.0Malignant neoplasm of superior wall of nasopharynx C11.1Malignant neoplasm of posterior wall of nasopharynx C11.2Malignant neoplasm of lateral wall of nasopharynx C11.3Malignant neoplasm of anterior wall of nasopharynx C11.8Malignant neoplasm of overlapping sites of nasopharynx C11.9Malignant neoplasm of nasopharynx, unspecified

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 2: Neoplasms (C00-D49).

Instructional Notes

Use Additional Code

code to identify:
exposure to environmental tobacco smoke (Z77.22)
exposure to tobacco smoke in the perinatal period (P96.81)
history of tobacco dependence (Z87.891)
occupational exposure to environmental tobacco smoke (Z57.31)
tobacco dependence (F17.-)
tobacco use (Z72.0)

Clinical Hierarchy

BillableHas subcodes

CH2Neoplasms (C00-D49)

C00-C14Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)

C11Malignant neoplasm of nasopharynxNot billable

C11.0Malignant neoplasm of superior wall of nasopharynxBillable

C11.1Malignant neoplasm of posterior wall of nasopharynxBillable

C11.2Malignant neoplasm of lateral wall of nasopharynxBillable

C11.3Malignant neoplasm of anterior wall of nasopharynxBillable

C11.8Malignant neoplasm of overlapping sites of nasopharynxBillable

C11.9Malignant neoplasm of nasopharynx, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Malignant neoplasm of nasopharynx.

Search PCS Codes