G08 vs O22.5
G08 (Intracranial and intraspinal phlebitis and thrombophlebitis) compared with O22.5 (Cerebral venous thrombosis in pregnancy), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. G08 carries an Excludes1 note covering O22.5: “pregnancy, childbirth and the puerperium (O22.5, O87.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| G08Intracranial and intraspinal phlebitis and thrombophlebitis | O22.5Cerebral venous thrombosis in pregnancy | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Intracranial and intraspinal phlebitis and thrombophlebitis is a billable ICD-10-CM diagnosis code (G08). | Cerebral venous thrombosis in pregnancy is a non-billable ICD-10-CM category code (O22.5). |
| Includes | 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 | Cerebrovenous sinus thrombosis in pregnancy |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources