Billable / Specific Code
ICD-10-CM C96.5 is the diagnosis code for Multifocal and unisystemic Langerhans-cell histiocytosis. This code falls under the section "Malignant neoplasms of lymphoid, hematopoietic and related tissue" 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 C96.5. They are mutually exclusive:
Understanding where C96.5 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, C96.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
C96.5 is the ICD-10-CM diagnosis code for "Multifocal and unisystemic Langerhans-cell histiocytosis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of C96.5 is C96 ("Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissue"). C96.5 provides a more specific classification within this category.
C96.5 is located in Section C81-C96 — "Malignant neoplasms of lymphoid, hematopoietic and related tissue" within Chapter 2 of the ICD-10-CM Tabular List.
Use C96.5 when the patients documented diagnosis matches "Multifocal and unisystemic Langerhans-cell histiocytosis" 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 Multifocal and unisystemic Langerhans-cell histiocytosis is C96.5.
Yes, C96.5 can be used as a primary diagnosis code since it is billable and specific.
C96.5 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for C96.5 include: multifocal and multisystemic (disseminated) Langerhans-cell histiocytosis (C96.0); unifocal Langerhans-cell histiocytosis (C96.6).
Yes, C96.5 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.