ICD10BillableValid for clinical use
ICD-10 Code I62.03: Nontraumatic chronic subdural hemorrhage
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).
đź“‹Clinical overview
This ICD-10 code is commonly used when documentation describes nontraumatic subdural, extradural, or otherwise unspecified intracranial hemorrhage in the I62 family. The most accurate code depends on whether the bleed is subdural versus extradural and, for subdural hemorrhage, whether the phase is unspecified, acute, subacute, or chronic.
When is it used?
- May be used when a clinician documents nontraumatic chronic subdural hemorrhage in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
đź©şClinical context
When commonly used
- Emergency, inpatient, neurology, neurosurgery, and utilization-review workflows where nontraumatic intracranial bleeding is part of the active assessment.
- Coding workflows where the chart identifies subdural versus extradural location, subdural phase, or whether the bleed remains otherwise unspecified.
Common management context
- Evaluation often includes brain imaging review, neurologic examination, hemodynamic and anticoagulation context, and coordination across neurology, neurosurgery, and critical-care teams.
- Documentation usually becomes more specific when the chart identifies subdural versus extradural bleeding and clarifies unspecified versus acute versus subacute versus chronic subdural pattern.
- Specialist context already linked on this page includes Cardiologist, General Physician, Orthopedic Specialist.
🔍Key distinctions
Important notes
- This ICD-10 family captures nontraumatic subdural, extradural, and otherwise unspecified intracranial hemorrhage rather than subarachnoid or intracerebral hemorrhage.
- Hemorrhage location and, for subdural bleeding, temporal phase are what drive final code specificity inside this family.
- Chronic nontraumatic subdural hemorrhage is coded separately from unspecified, acute, and subacute subdural hemorrhage patterns.
- Documentation that describes this nontraumatic intracranial hemorrhage branch is coded differently from subarachnoid hemorrhage, intracerebral hemorrhage, traumatic intracranial bleeding, or cerebral infarction.
Related codes to consider
I62.00Nontraumatic subdural hemorrhage, unspecified
Related hemorrhagic-stroke ICD-10 code; documentation often becomes more specific when the chart identifies subdural versus extradural location, subdural phase, or another intracranial-hemorrhage subtype.
I62.01Nontraumatic acute subdural hemorrhage
Related hemorrhagic-stroke ICD-10 code; documentation often becomes more specific when the chart identifies subdural versus extradural location, subdural phase, or another intracranial-hemorrhage subtype.
I62.02Nontraumatic subacute subdural hemorrhage
Related hemorrhagic-stroke ICD-10 code; documentation often becomes more specific when the chart identifies subdural versus extradural location, subdural phase, or another intracranial-hemorrhage subtype.
Code hierarchy
chapter
9Diseases of the circulatory system (I00-I99)
block
I60-I69Cerebrovascular diseases
category
I62Other and unspecified nontraumatic intracranial hemorrhage
category
I62.0Nontraumatic subdural hemorrhage
currentI62.0
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
CardiologistGeneral PhysicianOrthopedic Specialist
Related codes
Sibling codes
Coverage-related procedures and services
CPT 92083high
VISUAL FIELD EXAMINATION, UNILATERAL OR BILATERAL, WITH INTERPRETATION AND REPORT; EXTENDED EXAMINATION (EG, GOLDMANN VISUAL FIELDS WITH AT LEAST 3 ISOPTERS PLOTTED AND STATIC DETERMINATION WITHIN THE CENTRAL 30 DEG, OR QUANTITATIVE, AUTOMATED THRESHOLD PERIMETRY, OCTOPUS PROGRAM G-1, 32 OR 42, HUMPHREY VISUAL FIELD ANALYZER FULL THRESHOLD PROGRAMS 30-2, 24-2, OR 30/60-2)
Source: CMS coverage guidance
CPT 92082high
VISUAL FIELD EXAMINATION, UNILATERAL OR BILATERAL, WITH INTERPRETATION AND REPORT; INTERMEDIATE EXAMINATION (EG, AT LEAST 2 ISOPTERS ON GOLDMANN PERIMETER, OR SEMIQUANTITATIVE, AUTOMATED SUPRATHRESHOLD SCREENING PROGRAM, HUMPHREY SUPRATHRESHOLD AUTOMATIC DIAGNOSTIC TEST, OCTOPUS PROGRAM 33)
Source: CMS coverage guidance
CPT 92081high
VISUAL FIELD EXAMINATION, UNILATERAL OR BILATERAL, WITH INTERPRETATION AND REPORT; LIMITED EXAMINATION (EG, TANGENT SCREEN, AUTOPLOT, ARC PERIMETER, OR SINGLE STIMULUS LEVEL AUTOMATED TEST, SUCH AS OCTOPUS 3 OR 7 EQUIVALENT)
Source: CMS coverage guidance
CPT 70545high
MAGNETIC RESONANCE ANGIOGRAPHY, HEAD; WITH CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70544high
MAGNETIC RESONANCE ANGIOGRAPHY, HEAD; WITHOUT CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70546high
MAGNETIC RESONANCE ANGIOGRAPHY, HEAD; WITHOUT CONTRAST MATERIAL(S), FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SEQUENCES
Source: CMS coverage guidance
Coding guidelines
Common synonyms
Nontraumatic chronic subdural hemorrhage
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.