Intracranial and intraspinal phlebitis and thrombophlebitis (G08) ICD-10-CM
The G08 code range covers intracranial and intraspinal phlebitis and thrombophlebitis with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Septic embolism of intracranial or intraspinal venous sinuses and veins
- Septic endophlebitis of intracranial or intraspinal venous sinuses and veins
- Septic phlebitis of intracranial or intraspinal venous sinuses and veins
- Septic thrombophlebitis of intracranial or intraspinal venous sinuses and veins
- Septic thrombosis of intracranial or intraspinal venous sinuses and veins
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- intracranial phlebitis and thrombophlebitis complicating:
- abortion, ectopic or molar pregnancy O00 O07 O08.7
- pregnancy, childbirth and the puerperium O22.5 O87.3
- nonpyogenic intracranial phlebitis and thrombophlebitis I67.6
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- intracranial phlebitis and thrombophlebitis complicating nonpyogenic intraspinal phlebitis and thrombophlebitis G95.1
Codes in the G08 Range 1 codes · 1 billable
- G08 Intracranial and intraspinal phlebitis and thrombophlebitis
About the G08 Code Range
The ICD-10 code G08 is specifically used to identify cases of intracranial and intraspinal phlebitis and thrombophlebitis, which affect the veins within the brain and spinal cord. These conditions involve inflammation and clot formation in the venous sinuses of the central nervous system.
These codes cover a variety of related conditions commonly referenced as cerebral venous sinus thrombosis, thrombophlebitis of the cavernous sinus, or phlebitis of the superior sagittal sinus. They also include less common terms such as thrombosis of the torcular Herophili or septic thrombophlebitis of cortical veins. Knowing these synonyms helps medical coders accurately assign ICD-10 code G08 when documenting inflammation or embolism in cerebral or spinal venous structures, particularly following surgical procedures or infections. This code is critical for distinguishing these serious vascular conditions from other neurological disorders, ensuring proper diagnosis, treatment, and reporting.
Questions About This Page
How many billable codes are in the G08 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the G08 range classify?
The range classifies intracranial and intraspinal phlebitis and thrombophlebitis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
