All ICD10 Codes
Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • D42.9—

    Neoplasm of uncertain behavior of meninges, unspecified

  • D43.0—

    Neoplasm of uncertain behavior of brain, supratentorial

  • D43.1—

    Neoplasm of uncertain behavior of brain, infratentorial

  • D43.2—

    Neoplasm of uncertain behavior of brain, unspecified

  • D43.3—

    Neoplasm of uncertain behavior of cranial nerves

  • D43.4—

    Neoplasm of uncertain behavior of spinal cord

  • D43.8—

    Neoplasm of uncertain behavior of other specified parts of central nervous system

  • D43.9—

    Neoplasm of uncertain behavior of central nervous system, unspecified

  • D44.0—

    Neoplasm of uncertain behavior of thyroid gland

  • D44.10—

    Neoplasm of uncertain behavior of unspecified adrenal gland

  • D44.11—

    Neoplasm of uncertain behavior of right adrenal gland

  • D44.12—

    Neoplasm of uncertain behavior of left adrenal gland

  • D44.2—

    Neoplasm of uncertain behavior of parathyroid gland

  • D44.3—

    Neoplasm of uncertain behavior of pituitary gland

  • D44.4—

    Neoplasm of uncertain behavior of craniopharyngeal duct

  • D44.5—

    Neoplasm of uncertain behavior of pineal gland

  • D44.6—

    Neoplasm of uncertain behavior of carotid body

  • D44.7—

    Neoplasm of uncertain behavior of aortic body and other paraganglia

  • D44.9—

    Neoplasm of uncertain behavior of unspecified endocrine gland

  • D45—

    Polycythemia vera

  • D46.0—

    Refractory anemia without ring sideroblasts, so stated

  • D46.1—

    Refractory anemia with ring sideroblasts

  • D46.20—

    Refractory anemia with excess of blasts, unspecified

  • D46.21—

    Refractory anemia with excess of blasts 1

  • D46.22—

    Refractory anemia with excess of blasts 2

  • D46.4—

    Refractory anemia, unspecified

  • D46.9—

    Myelodysplastic syndrome, unspecified

  • D46.A—

    Refractory cytopenia with multilineage dysplasia

  • D46.B—

    Refractory cytopenia with multilineage dysplasia and ring sideroblasts

  • D46.C—

    Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality

  • D46.Z—

    Other myelodysplastic syndromes

  • D47.01—

    Cutaneous mastocytosis

  • D47.02—

    Systemic mastocytosis

  • D47.09—

    Other mast cell neoplasms of uncertain behavior

  • D47.1—

    Chronic myeloproliferative disease

  • D47.2—

    Monoclonal gammopathy

  • D47.3—

    Essential (hemorrhagic) thrombocythemia

  • D47.4—

    Osteomyelofibrosis

  • D47.9—

    Neoplasm of uncertain behavior of lymphoid, hematopoietic and related tissue, unspecified

  • D47.Z1—

    Post-transplant lymphoproliferative disorder (PTLD)

  • D47.Z2—

    Castleman disease

  • D47.Z9—

    Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue

  • D48.0—

    Neoplasm of uncertain behavior of bone and articular cartilage

  • D48.110—

    Desmoid tumor of head and neck

  • D48.111—

    Desmoid tumor of chest wall

  • D48.112—

    Desmoid tumor, intrathoracic

  • D48.113—

    Desmoid tumor of abdominal wall

  • D48.114—

    Desmoid tumor, intraabdominal

  • D48.115—

    Desmoid tumor of upper extremity and shoulder girdle

  • D48.116—

    Desmoid tumor of lower extremity and pelvic girdle

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