ICD-10-CM D72.820 is the diagnosis code for Lymphocytosis (symptomatic). This code falls under the section "Other disorders of blood and blood-forming organs" 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.
Understanding where D72.820 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, D72.820 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
D72.820 is the ICD-10-CM diagnosis code for "Lymphocytosis (symptomatic)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of D72.820 is D72.82 ("Elevated white blood cell count"). D72.820 provides a more specific classification within this category.
D72.820 is located in Section D70-D77 — "Other disorders of blood and blood-forming organs" within Chapter 3 of the ICD-10-CM Tabular List.
Use D72.820 when the patients documented diagnosis matches "Lymphocytosis (symptomatic)" 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 Lymphocytosis (symptomatic) is D72.820.
Yes, D72.820 can be used as a primary diagnosis code since it is billable and specific.
D72.820 is in Chapter 3 of the ICD-10-CM Tabular List.
Yes, D72.820 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.