I62.0 ICD-10-CM Code: Nontraumatic subdural hemorrhage

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for I62.0 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Notes without a marker are published on I62.0 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for I62.0

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

Before you code I62.0

1. I62.0 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).

   ReviewI62.00, I62.01, I62.02, I62.03

   See the relationships section · Guide: How to choose an ICD-10-CM code →

2. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with I62.0. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

   See the official tabular notes

Choose the right path

1. Does the documentation support one of the more specific codes beneath I62.0?
   Yes → Select that code and continue the checks below on its own page.
   No → I62.0 cannot be reported as written; query for the specificity its subcategory needs.

   ReviewI62.00, I62.01, I62.02, I62.03

2. Does the documentation support a condition named in I62.0’s Excludes1 note?
   Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
   No → Continue.

   ReviewS06

Consider I62.0. Then work the Use Additional Code 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).

The conditions the Use Additional Code note names

Reported with this code when documented; a conditional instruction (“if applicable”, “if known”) applies only when the record supports it.

Official instructions as workflow

• Excludes1 — check before selecting I62.0(1 note)

  Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with I62.0: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

  CompareS06

  See the official tabular notes · Guidelines I.A.12.a

• Excludes2 — not part of I62.0(1 note)

  Coding workflow: The conditions named in this note are not included in I62.0. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  CompareI69.2

  See the official tabular notes · Guidelines I.A.12.b

• Use Additional Code — after identifying I62.0(9 notes)

  Coding workflow: Check whether the documentation supports the additional code(s) the note names, and report them with I62.0 when it does. Where the instruction is conditional (“if applicable”, “if known”), it applies only when the record documents the condition.

  ReviewR29.7, F10, Z77.22, Z87.891, Z57.31, F17

  See the official tabular notes · Guidelines I.A.13

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

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.

Don’t confuse I62.0 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of I62.0 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

• S06— Excludes1 conflict (Excludes1 — generally not reported together)

  Not coded here — the tabular list excludes this pair for the same encounter.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of traumatic intracranial hemorrhage moves the case to S06; the two are not reported together unless documented as unrelated.

  Full comparison: I62.0 vs S06 →

• I62.9— Specificity relationship (Review)

  Overlapping diagnoses in the same category.

  Overlapping codes in the same category — the documentation decides which is the more specific fit.

  What moves you there: A record that documents no more than “Nontraumatic intracranial hemorrhage, unspecified” takes I62.9; specificity in the record moves it back here.

  Full comparison: I62.0 vs I62.9 →

• I69.2— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of sequelae of intracranial hemorrhage adds I69.2; it is not part of this code and both may be reported when both are documented.

  Full comparison: I62.0 vs I69.2 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Decision Points

The directives on this code's own record, as a pre-claim checklist.

1. 9 Use Additional Code instructions — report the named additional code(s) when the documentation supports them. See the Use Additional Code notes
2. 1 Excludes1 entry — codes named there are generally not reported together with this code (Guidelines I.A.12.a). See the Excludes1 notes
3. 1 Excludes2 entry — those conditions are not part of this code and may be reported additionally when documented. See the Excludes2 notes

Checklist rows are derived from this code's own official directives; the wording of each check is MedCoder editorial. The official notes themselves are in the sections each row links to.

Verify Before Coding

• Not billable as written — a more specific code is required: I62.00, I62.01, I62.02, I62.03.

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 I62.0 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 1 Excludes1 note: G31.84 — Mild cognitive impairment of uncertain or unknown etiology (via I62.-).

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 2 Excludes2 notes: I10 — Essential (primary) hypertension (via I62.-), I15 — Secondary hypertension (via I62.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Referenced by 2 Code First instructions across 2 chapters: G46 — Vascular syndromes of brain in cerebrovascular diseases (via I62.-), R29.7 — National Institutes of Health Stroke Scale (NIHSS) score (via I62.-).

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

Referenced by 2 Code Also instructions across 2 chapters: G96.81 — Intracranial hypotension, I16.1 — Hypertensive emergency (via I62.-).

These codes suggest coding this condition alongside when both are present.

Contextual Map

Every relationship of I62.0 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 I62.0 with these 7 related codes in Claim Check

Hierarchy

• I00-I99 — Chapter 9: Diseases of the Circulatory System (I00-I99) (I00-I99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• I60-I69 — Cerebrovascular diseases[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes1 notes

• G31.84 — Mild cognitive impairment of uncertain or unknown etiology[Excludes1](via I62.-): “cerebrovascular diseases (I60-I69)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Excludes2 notes

• I10 — Essential (primary) hypertension[Excludes2](via I62.-): “essential (primary) hypertension involving vessels of brain (I60-I69)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• I15 — Secondary hypertension[Excludes2](via I62.-): “secondary hypertension involving vessels of brain (I60-I69)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Code First instructions

• G46 — Vascular syndromes of brain in cerebrovascular diseases[Code First](via I62.-): “underlying cerebrovascular disease (I60-I69)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• R29.7 — National Institutes of Health Stroke Scale (NIHSS) score[Code First](via I62.-): “the type of cerebral infarction (I60.-, I61.-, I62.-, I63.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Code Also instructions

• G96.81 — Intracranial hypotension[Code Also]: “Nontraumatic subdural hemorrhage (I62.0-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
• I16.1 — Hypertensive emergency[Code Also](via I62.-): “cerebral hemorrhage (I60.-. I61.-, I62.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Nearest codes

• I62 — Other and unspecified nontraumatic intracranial hemorrhage[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• I62.00 — Nontraumatic subdural hemorrhage, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• I62.01 — Nontraumatic acute subdural hemorrhage[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• I62.02 — Nontraumatic subacute subdural hemorrhage[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• I62.03 — Nontraumatic chronic subdural hemorrhage[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• I62.1 — Nontraumatic extradural hemorrhage[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• I62.9 — Nontraumatic intracranial hemorrhage, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Common coding questions

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

Nearest Codes in This Family

Official ICD-10-CM classifications closest to I62.0 in its code family, with their registry titles.

• I62 — Other and unspecified nontraumatic intracranial hemorrhage
• I62.00 — Nontraumatic subdural hemorrhage, unspecified
• I62.01 — Nontraumatic acute subdural hemorrhage
• I62.02 — Nontraumatic subacute subdural hemorrhage
• I62.03 — Nontraumatic chronic subdural hemorrhage
• I62.1 — Nontraumatic extradural hemorrhage
• I62.9 — Nontraumatic intracranial hemorrhage, unspecified

View all codes in the I62 family