ICD-9

[aɪ-siː-diː naɪn]
noun
CID-9 (Classificação Internacional de Doenças, 9ª revisão)
1. The 9th revision of the International Classification of Diseases, a medical classification system used to encode and categorize diagnoses, symptoms, and procedures for billing and statistical purposes in healthcare
Before 2015, hospitals in the United States used ICD-9 codes to document patient diagnoses.
Antes de 2015, os hospitais nos Estados Unidos usavam códigos CID-9 para documentar diagnósticos dos pacientes.
2. A standardized system of diagnostic codes consisting of three to five alphanumeric characters used in medical records and insurance claims
The billing department converted all ICD-9 codes to ICD-10 when the transition occurred.
O departamento de cobrança converteu todos os códigos CID-9 para CID-10 quando a transição ocorreu.
ICD-9 was the predominant diagnostic coding system in the United States healthcare industry for decades until its mandatory replacement with ICD-10 on October 1, 2015. The transition represented a significant shift in medical documentation, increasing coding specificity from approximately 14,000 codes to over 70,000 codes. In Brazil and Portugal, the CID-9 system was also widely adopted in the healthcare sector, though implementation timelines varied by institution.
Synonyms / Sinônimos
International Classification of Diseases, 9th RevisionICD-9-CM (Clinical Modification)diagnostic classification system
Antonyms / Antônimos
ICD-10ICD-11

Regional Variations

General Brazilian
CID-9
Standard term used in healthcare and medical documentation
Portugal
CID-9
Same terminology used in Portuguese healthcare system
United States
ICD-9 or ICD-9-CM
Clinical Modification variant was the standard in US healthcare until October 1, 2015

Related Words

ICD-10medical codingdiagnosis codehealthcare classificationprocedural codeSNOMED CTCPT codes

Related Idioms & Phrases

ICD-9 code
ICD-9 compliance
ICD-9 to ICD-10 transition
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