ICD-10 G93.89
Billable / SpecificOther specified disorders of brain
About ICD-10-CM G93.89
ICD-10-CM code G93.89 represents Other specified disorders of brain. This is a billable/specific code in the Nervous System chapter (block G93). The 2026 edition of ICD-10-CM G93.89 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G93.89. Per CMS ICD-10-CM Tabular 2026.
- Postradiation encephalopathy
Medicare LCD Coverage for G93.89
Local Coverage Determinations (LCDs) from CMS MACs that list G93.89 as a covered diagnosis.
Showing top 10 of 102 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G93.89.
5 Medicare
1 Aetna
1 NY Medicaid
CPT Codes Commonly Billed with G93.89
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 93892 CMS LCD: Billing and Coding: Transcranial Doppler Studies CMS LCD
- 93888 CMS LCD: Billing and Coding: Transcranial Doppler Studies CMS LCD
- 93893 CMS LCD: Billing and Coding: Transcranial Doppler Studies CMS LCD
- 93886 CMS LCD: Billing and Coding: Transcranial Doppler Studies CMS LCD
- 93897 CMS LCD: Billing and Coding: Transcranial Doppler Studies CMS LCD
- 93896 CMS LCD: Billing and Coding: Transcranial Doppler Studies CMS LCD
- 93898 CMS LCD: Billing and Coding: Transcranial Doppler Studies CMS LCD
- 93882 CMS LCD: Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies CMS LCD
Convert G93.89 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G93.89 | 34889 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G93.89
Other codes in section G89-G99 (Other disorders of the nervous system).
ICD-10 G93.89, Billing FAQ
Is ICD-10 code G93.89 billable? +
Yes, G93.89 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G93.89? +
ICD-10 G93.89 includes: Postradiation encephalopathy.
What CPT codes are commonly billed with G93.89? +
Procedures frequently paired with G93.89 include: 93892, 93888, 93893, 93886, 93897.
What ICD-9 codes does G93.89 map to? +
Per CMS GEMs, G93.89 maps to ICD-9 codes: 34889. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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