DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

G96 Other disorders of central nervous system

  • Header · not billable

G96 is not billable. The category heads 14 billable codes in FY2027, grouped under 4 subdivisions.

Index → code

Where it sits

  1. Chapter 6 Diseases of the nervous system (G00-G99)
  2. G89-G99 Other disorders of the nervous system (G89-G99)
  3. G96 Other disorders of central nervous system
Billable codes
14
Subdivisions
4
CC / MCC codes
6 / 0
HCC V28 codes
0
New FY2027
0
Index entries
65

Codes in G96

  1. G96.0
    Cerebrospinal fluid leak
    Header
    Excludes1 1, Code also 2

    Excludes1

    • cerebrospinal fluid leak from spinal puncture (G97.0) G97.0

    Code also

    • if applicable:
    • intracranial hypotension (G96.81-) G96.81
  2. G96.00
    Cerebrospinal fluid leak, unspecified
    BillableCC
    Code also 2

    Code also

    • if applicable:
    • head injury (S00-S09) S00 S09
  3. G96.01
    Cranial cerebrospinal fluid leak, spontaneous
    BillableCC
    Inclusion terms 3

    Inclusion terms

    • Otorrhea due to spontaneous cerebrospinal fluid CSF leak
    • Rhinorrhea due to spontaneous cerebrospinal fluid CSF leak
    • Spontaneous cerebrospinal fluid leak from skull base
  4. G96.02
    Spinal cerebrospinal fluid leak, spontaneous
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Spontaneous cerebrospinal fluid leak from spine
  5. G96.08
    Other cranial cerebrospinal fluid leak
    BillableCC
    Inclusion terms 2, Code also 2

    Inclusion terms

    • Postoperative cranial cerebrospinal fluid leak
    • Traumatic cranial cerebrospinal fluid leak

    Code also

    • if applicable:
    • head injury (S00 - S09) S00 S09
  6. G96.09
    Other spinal cerebrospinal fluid leak
    BillableCC
    Inclusion terms 3, Code also 2

    Inclusion terms

    • Other spinal CSF leak
    • Postoperative spinal cerebrospinal fluid leak
    • Traumatic spinal cerebrospinal fluid leak

    Code also

    • if applicable:
    • head injury (S00 - S09) S00 S09
  7. G96.1
    Disorders of meninges, not elsewhere classified
    Header
  8. G96.11
    Dural tear
    BillableCC
    Excludes1 1, Code also 1

    Excludes1

    • accidental puncture or laceration of dura during a procedure (G97.41) G97.41

    Code also

    • intracranial hypotension, if applicable (G96.81-) G96.81
  9. G96.12
    Meningeal adhesions (cerebral) (spinal)
    Billable
  10. G96.19
    Other disorders of meninges, not elsewhere classified
    Header
  11. G96.191
    Perineural cyst
    Billable
    Inclusion terms 5

    Inclusion terms

    • Cervical nerve root cyst
    • Lumbar nerve root cyst
    • Sacral nerve root cyst
    • Tarlov cyst
    • Thoracic nerve root cyst
  12. G96.198
    Other disorders of meninges, not elsewhere classified
    Billable
  13. G96.8
    Other specified disorders of central nervous system
    Header
  14. G96.81
    Intracranial hypotension
    Header
    Code also 14

    Code also

    • any associated diagnoses, such as:
    • Brachial amyotrophy (G54.5) G54.5
    • Cerebrospinal fluid leak from spine (G96.02) G96.02
    • Cranial nerve disorders in diseases classified elsewhere (G53) G53
    • Nerve root and compressions in diseases classified elsewhere (G55) G55
    • Nonpyogenic thrombosis of intracranial venous system (I67.6) I67.6
    • Nontraumatic intracerebral hemorrhage (I61.-) I61
    • Nontraumatic subdural hemorrhage (I62.0-) I62.0
    • Other and unspecified cord compression (G95.2-) G95.2
    • Other secondary parkinsonism (G21.8) G21.8
    • Reversible cerebrovascular vasoconstriction syndrome (I67.841) I67.841
    • Spinal cord herniation (G95.89) G95.89
    • Stroke (I63.-) I63
    • Syringomyelia (G95.0) G95.0
  15. G96.810
    Intracranial hypotension, unspecified
    Billable
  16. G96.811
    Intracranial hypotension, spontaneous
    Billable
  17. G96.819
    Other intracranial hypotension
    Billable
  18. G96.89
    Other specified disorders of central nervous system
    Billable
  19. G96.9
    Disorder of central nervous system, unspecified
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

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

Index entries

  • Leptomeningopathy → G96.198
  • Pseudomeningocele (cerebral) (infective) (post-traumatic) → G96.198
  • Trophoneurosis NEC → G96.89
  • Encephalomyelopathy → G96.9
  • Encephalomyeloradiculopathy → G96.9
  • Meningoencephalomyelopathy → G96.9
  • Meningoencephalopathy → G96.9
  • Leak, leakagecerebrospinal fluid → G96.00
  • Otorrheacerebrospinal (fluid) → G96.01
  • Rhinorrheacerebrospinal (fluid) → G96.01
  • Fistula (cutaneous)cerebrospinal (fluid) → G96.08
  • Adhesions, adhesive (postinfective)meninges (cerebral) (spinal) → G96.12
  • Adhesions, adhesive (postinfective)spinal canal → G96.12
  • Cyst (colloid) (mucous) (simple) (retention)perineural → G96.191
  • Cyst (colloid) (mucous) (simple) (retention)Tarlov → G96.191
  • Calcificationfalx cerebri → G96.198
  • Calcificationmeninges (cerebral) (spinal) → G96.198
  • Cyst (colloid) (mucous) (simple) (retention)spinal meninges → G96.198
  • Disorder (of)meninges, specified type NEC → G96.198
  • Fibrosis, fibroticmeninges → G96.198
  • Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)ossificans → G96.198
  • Meningocele (spinal)acquired (traumatic) → G96.198
  • Ossificationfalx cerebri → G96.198
  • Ossificationmeninges (cerebral) (spinal) → G96.198
  • Hypotension (arterial) (constitutional)intracranial → G96.810
  • Cyst (colloid) (mucous) (simple) (retention)nervous system NEC → G96.89
  • Deficiency, deficientcentral nervous system → G96.89
  • Depression (acute) (mental)central nervous system → G96.9
  • Disease, diseasedcerebrospinal → G96.9
  • Otorrheacerebrospinal (fluid)spontaneous → G96.01
  • Rhinorrheacerebrospinal (fluid)spontaneous → G96.01
  • Otorrheacerebrospinal (fluid)postoperative → G96.08
  • Otorrheacerebrospinal (fluid)specified NEC → G96.08
  • Otorrheacerebrospinal (fluid)traumatic → G96.08
  • Rhinorrheacerebrospinal (fluid)postoperative → G96.08
  • Rhinorrheacerebrospinal (fluid)specified NEC → G96.08
  • Rhinorrheacerebrospinal (fluid)traumatic → G96.08
  • Tear, torn (traumatic)duralnontraumatic → G96.11
  • Cyst (colloid) (mucous) (simple) (retention)nerve rootcervical → G96.191
  • Cyst (colloid) (mucous) (simple) (retention)nerve rootlumbar → G96.191

25 more, longer entries are not listed; the search box finds them by word.

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