FAQ: Medical Codes
Question: Where can I find medical codes, such as the ICD, CPT, or HCUP?
You can find medical codes in the:
- CDT: Code on Dental Procedures and Nomenclature
- Classification of Death and Injury Resulting from Terrorism
- CPT®: Current Procedural Terminology
- DRGs: Diagnosis-Related Groups
- DSM: Diagnostic and Statistical Manual of Mental Disorders
- HCPCS: Healthcare Common Procedure Coding System
- HCUP: Healthcare Cost and Utilization Project
- HL7: Health Level Seven
- ICD: International Classification of Diseases
- ICF: International Classification of Functioning, Disability and Health
- LOINC®: Logical Observation Identifier Names and Codes terminology
- Newborn Screening Coding and Terminology Guide
- RxNorm: Medication Codes
- SNOMED CT®: Systematized Nomenclature of Medicine-Clinical Terms
- UMLS®: Unified Medical Language System, National Library of Medicine®
The CDT is the official coding used by dentists.
These codes identify deaths from terrorism as reported on death certificates. Health care providers use the Classification to report terrorism-related injuries and illnesses on medical records for statistics and reimbursement.
CPT codes describe services performed by health care providers. CPT Codes Mapped to CVX (Vaccines Administered) Codes are also available.
DRGs group patients by diagnosis, type of treatment, age and other factors. Hospitals are paid a set fee for treating patients in a single DRG category.
Psychiatrists and other mental health providers use the DSM-5 criteria for diagnosing psychiatric diseases.
The HCPCS is divided into two levels. Level I is the CPT: Current Procedural Terminology. Level II identifies products, supplies and services not in Level I, such as ambulance services.
HL7 provides clinical and administrative data standards to allow healthcare computer systems to communicate with each other, using like concepts bound to codes.
HCUPNet has health statistics and information on hospital inpatient and emergency department visits, searchable by ICD-9-CM or DRG codes.
The ICD is used to classify diseases on many types of records, including death certificates and hospital records. All versions of ICD-9 and ICD-10 are at the CDC Web site. An online version of the ICD-10 is also available from the World Health Organization.
The ICF classifies the consequences of disease. A searchable version of the ICF is available.
LOINC provides formal names and standardized codes for laboratory and other clinical observations.
This code promotes the use of electronic health data standards to record and transmit newborn screening test results.
RxNorm provides standard names for clinical drugs. RxNorm also links its names to many of the drug vocabularies commonly used in pharmacy management and drug interaction software.
SNOMED CT®: Systematized Nomenclature of Medicine-Clinical Terms by IHTSDO: International Health Terminology Standards Development Organisation (originally developed by the College of American Pathologists)
SNOMED CT is a comprehensive clinical terminology. A subset, SNOMED CT Core Subset, is also available. The Core Subset is useful for documentation and coding of clinical information at a summary level.
The UMLS links different names and views of the same concept and identifies relationships between them. The UMLS Metathesaurus has more than 150 terminologies, vocabularies, and code sets, including SNOMED CT, LOINC, MeSH®, and RxNorm.