G02 — Meningitis in other infectious and parasitic diseases classified elsewhere
Is G02 billable?
Yes — G02 is billable for FY2027. G02 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. G02 may be submitted for encounters from October 1, 2026 through September 30, 2027.
G02 at a glance
| Code | G02 |
|---|---|
| Description | Meningitis in other infectious and parasitic diseases classified elsewhere |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to G02?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name G02 directly.
This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.
Which MS-DRGs does G02 group to?
G02 sits in MDC 01 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 023Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulatorsurgical
- 024Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCCsurgical
As a secondary diagnosis, G02 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is G02 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to G02. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Exanthem, exanthema › epidemic with meningitis
- Meningitis › mycotic NEC (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)
- Meningitis › poliovirus (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)
- Meningitis › in › African trypanosomiasis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)
- Meningitis › in › parasitic disease NEC (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)
- Meningitis › in › poliovirus (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)
Excludes1 — never code together
The conditions below can never be reported together with G02 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- candidal meningitis (B37.5)
- coccidioidomycosis meningitis (B38.4)
- cryptococcal meningitis (B45.1)
- herpesviral [herpes simplex] meningitis (B00.3)
- infectious mononucleosis complicated by meningitis (B27.- with fifth character 2)
- measles complicated by meningitis (B05.1)
- meningoencephalitis and meningomyelitis in other infectious and parasitic diseases classified elsewhere (G05)
- mumps meningitis (B26.1)
- rubella meningitis (B06.02)
- varicella [chickenpox] meningitis (B01.0)
- zoster meningitis (B02.1)
Code first
The underlying condition below must be sequenced before G02. G02 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes2 — not included here — inherited from Chapter 6
The conditions below are not part of G02, but a patient may have both at the same time. When documentation supports it, G02 and the excluded code may both be reported.
- 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)
How long has G02 existed?
G02 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with G02?
ICD-10-CM declares these codes mutually exclusive with G02 — exactly one of each pair can be correct for a given encounter.