ICD-10 Code G96.02 – Spinal cerebrospinal fluid leak, spontaneous (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G96.02 – Spinal cerebrospinal fluid leak, spontaneous
What it is
G96.02 identifies a spontaneous leak of cerebrospinal fluid from the spinal canal, without trauma or a known procedure. It usually reflects an underlying dural defect or weakness in the spinal lining.
Clinical signs
Typical findings include orthostatic headache, neck pain, nausea, or symptoms that improve when lying down. Imaging or specialist evaluation may show evidence of spinal CSF leakage; clinical features vary, so refer to documentation.
When to use this code
Use this code when the record clearly documents a spontaneous spinal CSF leak, including suspected or confirmed leak attributed to a nontraumatic cause. It is appropriate when the provider links symptoms or imaging to a spinal source rather than a postoperative or traumatic leak.
If documentation only says “CSF leak” without location or cause, check the note before coding. You may need additional clarification if the leak is described as cranial, postoperative, or related to injury.
Do not use for
Do not use G96.02 for traumatic, postoperative, or procedure-related CSF leaks. Do not assign it when the leak site is not spinal or when the documentation does not support a spontaneous cause.
Coding tip
Confirm both the spinal location and spontaneous origin in the provider note before assigning G96.02.