All ICD10 Codes

G00-G09

Non-Billable
ChapterG00–G99
Rankblock
Official Description

Inflammatory diseases of the central nervous system (G00-G09)

Use a more specific code (5 billable, 5 non-billable)
G00Bacterial meningitis, not elsewhere classifiedhas subcodesG01Meningitis in bacterial diseases classified elsewhereG02Meningitis in other infectious and parasitic diseases classified elsewhereG03Meningitis due to other and unspecified causeshas subcodesG04Encephalitis, myelitis and encephalomyelitishas subcodesG05Encephalitis, myelitis and encephalomyelitis in diseases classified elsewherehas subcodesG06Intracranial and intraspinal abscess and granulomahas subcodesG07Intracranial and intraspinal abscess and granuloma in diseases classified elsewhereG08Intracranial and intraspinal phlebitis and thrombophlebitisG09Sequelae of inflammatory diseases of central nervous system
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 6: Diseases of the Nervous System (G00-G99).

CH6 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Clinical Hierarchy

BillableHas subcodes
CH6Diseases of the nervous system (G00-G99)
G00-G09Inflammatory diseases of the central nervous system (G00-G09)Not billable
G00Bacterial meningitis, not elsewhere classifiedSubcodes
G01Meningitis in bacterial diseases classified elsewhereBillable
G02Meningitis in other infectious and parasitic diseases classified elsewhereBillable
G03Meningitis due to other and unspecified causesSubcodes
G04Encephalitis, myelitis and encephalomyelitisSubcodes
G05Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhereSubcodes
G06Intracranial and intraspinal abscess and granulomaSubcodes
G07Intracranial and intraspinal abscess and granuloma in diseases classified elsewhereBillable
G08Intracranial and intraspinal phlebitis and thrombophlebitisBillable
G09Sequelae of inflammatory diseases of central nervous systemBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to G00-G09:

chapterCH6
Diseases of the nervous system (G00-G99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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