Billable / Specific Code
ICD-10-CM D89.835 is the diagnosis code for Cytokine release syndrome, grade 5. This code falls under the section "Certain disorders involving the immune mechanism" within Chapter 3 — Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89). 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.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where D89.835 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, D89.835 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
D89.835 is the ICD-10-CM diagnosis code for "Cytokine release syndrome, grade 5". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of D89.835 is D89.83 ("Cytokine release syndrome"). D89.835 provides a more specific classification within this category.
D89.835 is located in Section D80-D89 — "Certain disorders involving the immune mechanism" within Chapter 3 of the ICD-10-CM Tabular List.
Use D89.835 when the patients documented diagnosis matches "Cytokine release syndrome, grade 5" 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 Cytokine release syndrome, grade 5 is D89.835.
Yes, D89.835 can be used as a primary diagnosis code since it is billable and specific.
D89.835 is in Chapter 3 of the ICD-10-CM Tabular List.
Yes, D89.835 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.