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    OpenPayerBilling CodesOther disorders of blood and blood-forming organsICD-10-CM d77-other-disorders-of-blood
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    ICD-10-CM Code For Other Disorders Of Blood And Blood-Forming Organs In Diseases Classified Elsewhere: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group D77 includes secondary blood and blood-forming organ disorders that arise in the context of other diseases, such as cytopenias, coagulopathies, and other hematologic abnormalities associated with systemic conditions. These ICD-10-CM diagnosis codes are used to document secondary hematologic complications, capturing disease severity, organ involvement, or clinical complexity relevant to this group. Accurate coding within the ICD-10-CM D77 group supports proper claim adjudication and complete clinical documentation for appropriate reimbursement.

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    ICD-10-CM D77: Other Disorders Of Blood And Blood-Forming Organs In Diseases Classified Elsewhere Overview

    This group represents blood and blood-forming organ abnormalities that occur as complications of other systemic diseases rather than primary hematologic disorders. It targets hematologic manifestations such as cytopenias or coagulation defects linked to an underlying condition. Accurate coding captures the relationship between the blood disorder and the primary disease, which matters for complete clinical documentation and appropriate reimbursement.

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    When to Use

    Use a code from this group when a documented blood or blood-forming organ disorder is explicitly attributed to another disease listed elsewhere in the medical record. Select the code that reflects the specific hematologic manifestation and link it to the primary condition per coding guidelines.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    D77Other disorders of blood and blood-forming organs in diseases classified elsewhere

    DRG Codes

    3 rows

    DRG CodeDescription
    814Reticuloendothelial and Immunity Disorders with MCC
    815Reticuloendothelial and Immunity Disorders with CC
    816Reticuloendothelial and Immunity Disorders without CC/MCC

    Typical Clinical Scenarios

    • An adult patient undergoing evaluation for chronic anemia of chronic disease related to longstanding rheumatoid arthritis presents with progressive fatigue and laboratory studies showing normocytic anemia and bone marrow findings indicating defective hematopoiesis associated with the systemic inflammatory condition. The hematologist documents the blood disorder as secondary to the underlying connective tissue disease and assigns a code from this diagnosis group to capture the blood abnormality occurring in diseases classified elsewhere. Typical codes: D77
    • An elderly patient admitted through the emergency department with acute worsening of bleeding and petechiae while receiving chemotherapy for metastatic cancer; workup reveals thrombocytopenia attributed to the malignancy and its treatment, and clinicians code the disorder of the blood as occurring in the course of the neoplastic disease. The diagnosis from this group is used to indicate the blood cell disorder is a manifestation of the patient’s underlying cancer. Typical codes: D77
    • A pediatric patient with a history of systemic lupus erythematosus presents for routine follow-up and is found to have leukopenia and hemolytic episodes linked to the autoimmune disease activity; the clinician documents a blood disorder secondary to the autoimmune condition to reflect the hematologic complication of the systemic illness. A code from this group is assigned to denote the blood disorder in relation to the primary autoimmune disease. Typical codes: D77

    Related Codes

    D70-NEUTROPENIA

    ICD-10-CM Code For Neutropenia: Group Overview

    D71-FUNCTIONAL-DISORDERS-OF-POLYMORPHONUCLEAR-NEUTROPHILS

    ICD-10-CM Code For Functional Disorders Of Polymorphonuclear Neutrophils: Group Overview

    D72-OTHER-DISORDERS-OF-WHITE-BLOOD-CELLS

    ICD-10-CM Code For Other Disorders Of White Blood Cells: Group Overview

    D73-DISEASES-OF-SPLEEN

    ICD-10-CM Code For Diseases Of Spleen: Group Overview

    D74-METHEMOGLOBINEMIA

    ICD-10-CM Code For Methemoglobinemia: Group Overview

    D75-OTHER-AND-UNSPECIFIED-BLOOD-DISORDERS

    ICD-10-CM Code For Other And Unspecified Diseases Of Blood And Blood-Forming Organs: Group Overview

    D76-OTHER-SPECIFIED-LYMPHORETICULAR-DISEASES

    ICD-10-CM Code For Other Specified Diseases With Participation Of Lymphoreticular And Reticulohistiocytic Tissue: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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