ICD-10 Code Conversion —CM, GM, and Beyond
ICD-10 is not one standard — it's a family of national variants that diverge in ways that matter clinically. TranslateMed automatically detects which variant a document uses and maps codes to the target country's variant.
ICD-10 Variants by Country
Each national health system maintains its own ICD-10 modification. They're compatible at the base level but diverge in clinical extensions and code validity.
United States
Clinical Modification — 7-character codes, optimized for US clinical billing and ambulatory care. ~72,000 codes.
- 7th-character extensions for encounter type
- S/T codes for injury laterality
- Z codes for social determinants
- Mandatory for US Medicare/Medicaid billing
Germany
German Modification — annual revision cycle with German-specific additions. ~13,000 codes.
- Secondary codes (dagger/asterisk system)
- Specific codes for German social law
- Compatibility codes for DRG grouping
- Required for GKV (statutory insurance) billing
Thailand
Thai Modification — WHO base with Thai-specific additions for tropical diseases and local healthcare system.
- Extended codes for tropical/endemic diseases
- Codes for traditional Thai medicine integration
- Required for Thai DRG (DRGs-v7) grouping
- National Health Security Office (NHSO) billing
International Base
The authoritative WHO base used by GB, JP, KR, AE, BR, MX, IN, TR — often with minor local extensions.
- ~15,000 codes at 3-character level
- 4-character subcategories for detail
- Maintained by WHO with annual updates
- Basis for all national modifications
Live Conversion Examples
Real mappings from TranslateMed's verified medical coding database. Confidence scores reflect structural equivalence, not semantic similarity.
| Source Variant | Source Code | Target Variant | Target Code | Confidence |
|---|---|---|---|---|
| ICD-10-GM | J06.9 Akute Infektion der oberen Atemwege | ICD-10-CM | J06.9 Acute upper respiratory infection, unspecified | 100% |
| ICD-10-GM | K08.10 Vollständiger Zahnverlust durch Unfall | ICD-10-CM | K08.101 Complete loss of teeth due to trauma, class I | 95% |
| ICD-10-CM | M54.5 Low back pain | ICD-10-GM | M54.5 Kreuzschmerz | 100% |
| ICD-10-TM | A90 Dengue fever | ICD-10-CM | A97.0 Dengue without warning signs | 90% |
How Automatic ICD-10 Mapping Works
Verified Mapping (Primary)
TranslateMed first attempts direct lookup against its curated crosswalk database — built from authoritative national health system sources. If a verified mapping exists, it's applied with 100% confidence.
This approach covers the vast majority of codes in standard documents with no AI processing required.
AI-Augmented Fallback (Edge Cases)
For codes without direct verified equivalents — country-specific extensions, retired codes, combination codes — TranslateMed uses AI with full KB context to find the closest clinically valid equivalent.
All AI-suggested mappings are flagged with confidence scores for clinician review. No silent substitutions.
Related Tools
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