DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

G08 diagnosis code · Billable category · FY2027

G08 Intracranial and intraspinal phlebitis and thrombophlebitis

  • Billable
  • MCC
  • POA reported

G08 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G00-G09 Inflammatory diseases of the central nervous system (G00-G09)
  3. G08 Intracranial and intraspinal phlebitis and thrombophlebitis
CC / MCC
MCC
MS-DRG
023-024, 091-093
HCC V28
–
POA
Reported
Code Editor
–
Index entries
14

Instructions

At G08

Inclusion terms

  • 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

Excludes1

  • intracranial phlebitis and thrombophlebitis complicating:
  • abortion, ectopic or molar pregnancy (O00-O07, O08.7) O00 O07 O08.7
  • pregnancy, childbirth and the puerperium (O22.5, O87.3) O22.5 O87.3
  • nonpyogenic intracranial phlebitis and thrombophlebitis (I67.6) I67.6

Excludes2

  • intracranial phlebitis and thrombophlebitis complicating nonpyogenic intraspinal phlebitis and thrombophlebitis (G95.1) G95.1

Notes that also apply

Chapter 6 instructions (Excludes2 8): printed on the chapter 6 page.

Index entries

  • Embolism (multiple) (paradoxical)intraspinal venous sinuses or veins → G08
  • Embolism (multiple) (paradoxical)venous sinus → G08
  • Phlebitis (infective) (pyemic) (septic) (suppurative)intracranial (venous) sinus (any) → G08
  • Phlebitis (infective) (pyemic) (septic) (suppurative)intraspinal venous sinuses and veins → G08
  • Thrombophlebitiscavernous (venous) sinus → G08
  • Thrombophlebitiscerebral (sinus) (vein) → G08
  • Thrombophlebitisintracranial venous sinus (any) → G08
  • Thrombophlebitisintraspinal venous sinuses and veins → G08
  • Thrombophlebitislateral (venous) sinus → G08
  • Thrombophlebitislongitudinal (venous) sinus → G08
  • Thrombophlebitissinus (intracranial) → G08
  • Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel)intraspinal venous sinuses and veins → G08
  • Embolism (multiple) (paradoxical)intracranialvenous sinus (any) → G08
  • Inflammation, inflamed, inflammatory (with exudation)veinintracranial or intraspinal (septic) → G08

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for G08
CC / MCCMCC
PDX exclusion list0671 (72 codes)
Appendix BMDC 01 Diseases and Disorders of the Nervous System, MS-DRG 023-024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator…); MDC 01 Diseases and Disorders of the Nervous System, MS-DRG 091-093 (Other Disorders of Nervous System with MCC…)
Code Editor–
POAReported
HCC V28–

MCC as a secondary diagnosis, not when the principal diagnosis is on its PDX exclusion list.

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy