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G96.198 ICD-10-CM Code: Other disorders of meninges, not elsewhere classified

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

Potential MS-DRG participation — not a DRG assignment.

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v44, Appendix B.

  • MS-DRG 091 — OTHER DISORDERS OF NERVOUS SYSTEM WITH MCC (MDC 01)
  • MS-DRG 092 — OTHER DISORDERS OF NERVOUS SYSTEM WITH CC (MDC 01)
  • MS-DRG 093 — OTHER DISORDERS OF NERVOUS SYSTEM WITHOUT CC/MCC (MDC 01)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Coder workflow for G96.198

MedCoder structured workflow — derived from this code’s own official record

Before you code G96.198

  1. “Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on G96.198; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).

    ReviewG96.191

    See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Any detail beyond this code’s title
What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Code Overview

Other disorders of meninges, not elsewhere classified is a billable ICD-10-CM diagnosis code (G96.198).

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Indexed Clinical Terms (17)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

MS-DRG Grouper Relationships (FY2027)

Potential MS-DRG participation — not a DRG assignment.

FY2027 MS-DRG: not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity for that release.

Named in the grouper logic of 3 MS-DRGs: DRG 091 (MDC 01), DRG 092 (MDC 01), DRG 093 (MDC 01).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):NVS020 — Other nervous system disorders (neither hereditary nor degenerative) (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Other nervous system disorders (neither hereditary nor degenerative)).

G96.0 — Cerebrospinal fluid leak, G96.00 — Cerebrospinal fluid leak, unspecified, G96.01 — Cranial cerebrospinal fluid leak, spontaneous, G96.02 — Spinal cerebrospinal fluid leak, spontaneous, G96.08 — Other cranial cerebrospinal fluid leak, G96.09 — Other spinal cerebrospinal fluid leak, G96.11 — Dural tear, G96.12 — Meningeal adhesions (cerebral) (spinal), G96.19 — Other disorders of meninges, not elsewhere classified, G96.191 — Perineural cyst, G96.8 — Other specified disorders of central nervous system, G96.810 — Intracranial hypotension, unspecified, G96.811 — Intracranial hypotension, spontaneous, G96.819 — Other intracranial hypotension, G96.89 — Other specified disorders of central nervous system, G96.9 — Disorder of central nervous system, unspecified, G98.0 — Neurogenic arthritis, not elsewhere classified, G98.8 — Other disorders of nervous system, G99.8 — Other specified disorders of nervous system in diseases classified elsewhere, I67.3 — Progressive vascular leukoencephalopathy, +97 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Pseudomeningocele”, “Cyst”, “Deformity”, …; these codes share that main term but sit in a different category of the Tabular List.

G03.0 — Nonpyogenic meningitis (aseptic), G03.1 — Chronic meningitis (chronic NEC), G03.2 — Benign recurrent meningitis [Mollaret] (Mollaret), G03.8 — Meningitis due to other specified causes (in, specified cause NEC), G03.9 — Meningitis, unspecified, G23.8 — Other specified degenerative diseases of basal ganglia (basal ganglia), G93.0 — Cerebral cysts (dura), G93.2 — Benign intracranial hypertension (serous NEC), G93.89 — Other specified disorders of brain (cerebral), G95.89 — Other specified diseases of spinal cord (cauda equina), G97.82 — Other postprocedural complications and disorders of nervous system (postprocedural), H02.821 — Cysts of right upper eyelid (eyelid, right, upper), H02.822 — Cysts of right lower eyelid (eyelid, right, lower), H02.823 — Cysts of right eye, unspecified eyelid (eyelid, right), H02.824 — Cysts of left upper eyelid (eyelid, left, upper), H02.825 — Cysts of left lower eyelid (eyelid, left, lower), H02.826 — Cysts of left eye, unspecified eyelid (eyelid, left), H02.829 — Cysts of unspecified eye, unspecified eyelid (eyelid), H04.13 — Lacrimal cyst (lacrimal, gland), H05.30 — Unspecified deformity of orbit (orbit), +558 more

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

Partial Thromboplastin Time (PTT) Test, Prothrombin Time Test and INR (PT/INR)

Contextual Map

Every relationship of G96.198 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

Clinical classification (CCSR)

MS-DRG Grouper

MDC crossing

  • MDC 01 — Diseases and Disorders of the Nervous System[MDC crossing]: “Diseases and Disorders of the Nervous System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 8,919 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2027

Index entries (17)

  • Calcification, falx cerebri[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Calcification, meninges (cerebral) (spinal)[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Cyst (colloid) (mucous) (simple) (retention), dura (cerebral), spinal[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Cyst (colloid) (mucous) (simple) (retention), meninges (cerebral), spinal[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Cyst (colloid) (mucous) (simple) (retention), spinal meninges[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Cyst (colloid) (mucous) (simple) (retention), subdural (cerebral), spinal cord[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Deformity, choroid (congenital), plexus, acquired[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • Deformity, meninges or membrane (congenital), cerebral, acquired[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
  • and 9 more

Nearest codes (19)

Change history

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Inpatient payment groups Official source data
CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44 Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder structured relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "G96.198 — Other disorders of meninges, not elsewhere classified." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/g96.198-other-disorders-of-meninges-not-elsewhere-classified

Change history

  • FY2021 — October 1, 2020
    Added to the code set
    Other disorders of meninges, not elsewhere classified
    FY2021 changes

Nearest Codes in This Family

Official ICD-10-CM classifications closest to G96.198 in its code family, with their registry titles.

View all codes in the G96 family