FAQ 1. What is ICD-9?
ICD-9-CM (International Classification of Diseases, 9th edition, Clinical Modification) is a set of codes used by physicians, hospitals, and allied health workers to indicate diagnosis for all patient encounters. The ICD-9-CM is the HIPAA transaction code set for diagnosis coding.
The current International Classification of Diseases can trace its roots back to the Bertillon Classification first published in 1893. Starting in 1900, experts met about every 10 years under the auspices of the French government to revise the classifications. The fifth revision was published just before World War II. The World Health Organization took over responsibility for ICD in 1946 with publication of ICD-6. The intended purpose of the ICD-9 diagnosis codes (Volume 1 and 2) is for statistical tracking of diseases. Nothing more. Codes are added only when it can be demonstrated that it will help in the identification and monitoring of the disease.
The current edition in the United States for morbidity classification, ICD-9-CM, has been in use since 1979. The original intent for the diagnosis codes was for epidemiological and not billing functions, although in the US, the codes are used by payers for billing and reimbursement purposes.
ICD-9 diagnosis codes consist of 3-5 numeric characters representing illnesses and conditions, and alpha-numeric E codes, describing external causes of injuries, poisonings, and adverse effects; and V codes describe factors influencing health status and contact with health services.
ICD-9-CM consists of three volumes. Physicians use Volumes 1 and 2 only to assign diagnosis codes. Physicians use Current Procedural Terminology (CPT), published by the American Medical Association, to report medical and surgical procedures and physician service codes, rather than Volume 3 of the ICD-9-CM codes. The 3rd Volume of ICD-9-CM is used by Hospitals for reporting inpatient procedures and resource utilization.
FAQ 2. What are the 2013 changes for ICD-9?
No changes were made to the 2013 ICD-9 code list pertinent to Emergency Medicine and only one revision was made to the entire manual. There were several revisions to ICD-9-CM that affected Emergency Medicine for 2012. The updates were effective October 1, 2012. The 2012 changes represent the last major ICD-9-CM update prior to implementation of ICD-10-CM now anticipated for 2014. Any further revisions to ICD-9-CM will only be for a new disease and/or representing new technology. The 2012 code changes include the following codes:
|Migraine and migraine variants
|Influenza due to identified novel influenza A virus with pneumonia
|Influenza due to identified novel influenza A virus with other respiratory manifestations
|Influenza due to identified novel influenza A virus with other manifestations
|Respiratory conditions due to smoke inhalation
|Primary spontaneous pneumothorax
|Secondary spontaneous pneumothorax
|Other air leak
|Acute interstitial pneumonitis
|Acute respiratory failure following trauma and surgery
|Other pulmonary insufficiency, NEC, following trauma and surgery
|Acute and chronic respiratory failure following trauma and surgery
|Other nonspecific abnormal finding of lung field
|Nonspecific reaction to tuberculin skin test without active tuberculosis
|Multiple closed pelvic fractures without disruption of pelvic circle
|Multiple open pelvic fractures without disruption of pelvic circle
|Post-procedural aspiration pneumonia
|Other digestive system complications
|Bloodstream infection due to central venous catheter
|Local infection due to central venous catheter
|Acute infection following transfusion, infusion, or injection of blood
|Anaphylactic reaction due to administration of blood and blood products
|Anaphylactic reaction due to vaccination
|Other serum reaction due to administration of blood and blood products
|Other serum reaction due to vaccination
|Personal history of gestational diabetes
|Personal history of other endocrine, metabolic, and immunity disorders
|Personal history of pulmonary embolism
|Personal history of anaphylaxis
|Pregnancy with history of ectopic pregnancy
View a complete list of 2013 ICD-9-CM revisions, additions, and deletions at http://www.cms.gov/ICD9ProviderDiagnosticCodes/07_summarytables.asp#TopOfPage