G96.81 ICD-10-CM Code: Intracranial hypotension
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Coding at a Glance
- Tabular directives
- 14 code-also instructions
Coding instructions
Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for G96.81 in the official ICD-10-CM tabular list, quoted as published.
Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026
Trace:FY2027 changesChange historyRelease, file and checksum
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated diagnoses, such as:
- Brachial amyotrophy (G54.5)
- Cerebrospinal fluid leak from spine (G96.02)
- Cranial nerve disorders in diseases classified elsewhere (G53)
- Nerve root and compressions in diseases classified elsewhere (G55)
- Nonpyogenic thrombosis of intracranial venous system (I67.6)
- Nontraumatic intracerebral hemorrhage (I61.-)
- Nontraumatic subdural hemorrhage (I62.0-)
- Other and unspecified cord compression (G95.2-)
- Other secondary parkinsonism (G21.8)
- Reversible cerebrovascular vasoconstriction syndrome (I67.841)
- Spinal cord herniation (G95.89)
- Stroke (I63.-)
- Syringomyelia (G95.0)
Coder workflow for G96.81
MedCoder structured workflow — derived from this code’s own official record
Before you code G96.81
- G96.81 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).
ReviewG96.810, G96.811, G96.819
See the relationships section · Guide: How to choose an ICD-10-CM code →
Choose the right path
- Does the documentation support one of the more specific codes beneath G96.81?
Yes → Select that code and continue the checks below on its own page.
No → G96.81 cannot be reported as written; query for the specificity its subcategory needs.
Consider G96.81. Then review the Code Also note, and confirm the code is valid for the date of service in the Verify section.
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).
Official instructions as workflow
Code Also — related condition(14 notes)
Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.
ReviewG54.5, G96.02, G53, G55, I67.6, I61
See the official tabular notes · Guidelines I.A.17
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
MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.
Verify Before Coding
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
Other codes that name G96.81 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.
Referenced by 2 Code Also instructions: G96.0 — Cerebrospinal fluid leak, G96.11 — Dural tear.
These codes suggest coding this condition alongside when both are present.
Contextual Map
Every relationship of G96.81 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.
Run G96.81 with these 10 related codes in Claim Check
Hierarchy
- G00-G99 — Chapter 6: Diseases of the Nervous System (G00-G99) (G00-G99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
Code Also (13)
- G21.8 — Other secondary parkinsonism[Code Also]: “Other secondary parkinsonism (G21.8)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G53 — Cranial nerve disorders in diseases classified elsewhere[Code Also]: “Cranial nerve disorders in diseases classified elsewhere (G53)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G54.5 — Neuralgic amyotrophy[Code Also]: “Brachial amyotrophy (G54.5)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G55 — Nerve root and plexus compressions in diseases classified elsewhere[Code Also]: “Nerve root and compressions in diseases classified elsewhere (G55)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G95.0 — Syringomyelia and syringobulbia[Code Also]: “Syringomyelia (G95.0)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G95.2 — Other and unspecified cord compression[Code Also]: “Other and unspecified cord compression (G95.2-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G95.89 — Other specified diseases of spinal cord[Code Also]: “Spinal cord herniation (G95.89)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G96.02 — Spinal cerebrospinal fluid leak, spontaneous[Code Also]: “Cerebrospinal fluid leak from spine (G96.02)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- and 5 more
Referenced by Code Also instructions
- G96.0 — Cerebrospinal fluid leak[Code Also]: “intracranial hypotension (G96.81-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
- G96.11 — Dural tear[Code Also]: “intracranial hypotension, if applicable (G96.81-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
Nearest codes (19)
- G96 — Other disorders of central nervous system[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G96.0 — Cerebrospinal fluid leak[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G96.00 — Cerebrospinal fluid leak, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G96.01 — Cranial cerebrospinal fluid leak, spontaneous[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G96.02 — Spinal cerebrospinal fluid leak, spontaneous[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G96.08 — Other cranial cerebrospinal fluid leak[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G96.09 — Other spinal cerebrospinal fluid leak[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- G96.1 — Disorders of meninges, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- and 11 more
Change history
- FY2021 — Added to the code set[Change history]— CMS release files (code change ledger) · icd10cm-fy2021
Common coding questions
Can G96.81 be billed directly?
No. G96.81 (Intracranial hypotension) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
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
- 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. "G96.81 — Intracranial hypotension." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/g96.81-intracranial-hypotension
Change history
- FY2021 — October 1, 2020Added to the code setIntracranial hypotensionFY2021 changes
Nearest Codes in This Family
Official ICD-10-CM classifications closest to G96.81 in its code family, with their registry titles.
- G96.12 — Meningeal adhesions (cerebral) (spinal)
- G96.19 — Other disorders of meninges, not elsewhere classified
- G96.191 — Perineural cyst
- G96.198 — Other disorders of meninges, not elsewhere classified
- 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