CPT Code(s) 87086. If culture is positive, CPT code(s): 87088 (each isolate) will be added with an additional charge. Identification will be performed at an additional charge (CPT code(s): 87077 or 87140 or 87143 or 87147 or 87149).
The Meninges. The meninges are three layers of protective tissue called the dura mater, arachnoid mater, and pia mater that surround the neuraxis. The meninges of the brain and spinal cord are continuous, being linked through the magnum foramen.Dura Mater The dura mater is the most superior of the meningeal layers.he meninges are three layers of protective tissue called the dura mater, arachnoid mater, and pia mater that surround the neuraxis. The meninges of the brain and spinal cord are continuous, being linked through the magnum foramen. Dura Mater.
From outermost to innermost, Meninges around the brain has three layers : 1. The dura mater 2. the arachnoid mater and 3. the pia mater. The dura mater has two layers : periosteal and meningeal. There is a space between the dura mater and the arachnoid mater, called subdural space. There is also a space between the arachnoid and the pia mater, which is called subarachnoid space. Following diagram shows different layers of the meninges and their order around brain :