Benign neoplasm of meninges (D32)
ICD-10 code D32 is used to classify benign tumors of the meninges, which are the protective membranes covering the brain and spinal cord. These codes help specify the tumor’s location, such as cerebral or spinal meninges, or when the exact site is not specified.
More specifically, D32.0 refers to benign neoplasms located in the cerebral meninges, often called meningiomas, including types like benign meningioma of the olfactory groove or intracranial meningioma. D32.1 covers benign tumors of the spinal meninges, with synonyms like spinal meningioma or tumors of the intradural intramedullary and extramedullary spaces. D32.9 is used when the benign meningeal tumor site is unspecified and includes terms such as meningioma of the optic nerve sheath and melanocytoma of the meninges. Understanding these synonyms alongside the official ICD-10 code aids coders and healthcare providers in accurately documenting and reporting these benign central nervous system tumors.
Neoplasms (C00–D49)
Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
D32 Benign neoplasm of meninges
- D32.0 Benign neoplasm of cerebral meninges
- D32.1 Benign neoplasm of spinal meninges
- D32.9 Benign neoplasm of meninges, unspecified
Benign neoplasm of meninges (D32)
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Arachnoid
A delicate membrane enveloping the brain and spinal cord. It lies between the PIA MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity which is filled with CEREBROSPINAL FLUID.
Arachnoid Cysts
Intracranial or spinal cavities containing a cerebrospinal-like fluid, the wall of which is composed of arachnoidal cells. They are most often developmental or related to trauma. Intracranial arachnoid cysts usually occur adjacent to arachnoidal cistern and may present with HYDROCEPHALUS; HEADACHE; SEIZURES; and focal neurologic signs. (From Joynt, Clinical Neurology, 1994, Ch44, pp105-115)
Arachnoiditis
Acute or chronic inflammation of the arachnoid membrane of the meninges most often involving the spinal cord or base of the brain. This term generally refers to a persistent inflammatory process characterized by thickening of the ARACHNOID membrane and dural adhesions. Associated conditions include prior surgery, infections, trauma, SUBARACHNOID HEMORRHAGE, and chemical irritation. Clinical features vary with the site of inflammation, but include cranial neuropathies, radiculopathies, and myelopathies. (From Joynt, Clinical Neurology, 1997, Ch48, p25)
Medulloblastoma
A malignant neoplasm that may be classified either as a glioma or as a primitive neuroectodermal tumor of childhood (see NEUROECTODERMAL TUMOR, PRIMITIVE). The tumor occurs most frequently in the first decade of life with the most typical location being the cerebellar vermis. Histologic features include a high degree of cellularity, frequent mitotic figures, and a tendency for the cells to organize into sheets or form rosettes. Medulloblastoma have a high propensity to spread throughout the craniospinal intradural axis. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2060-1)
Meninges
The three membranes that cover the BRAIN and the SPINAL CORD. They are the dura mater, the arachnoid, and the pia mater.
Meningocele
A congenital or acquired protrusion of the meninges, unaccompanied by neural tissue, through a bony defect in the skull or vertebral column.
Pia Mater
The innermost layer of the three meninges covering the brain and spinal cord. It is the fine vascular membrane that lies under the ARACHNOID and the DURA MATER.
