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NATURE 2.01  SELECTION RULES
DEFINITION:
The nature of injury or illness identifies the principal physical characteristic(s)
of the work related injury or illness
RULES OF SELECTION:
- Name the injury or illness indicated on the source document. Example: For strained
back, choose Strains.
- When two or more injuries or illnesses are indicated, and one is a sequela, aftereffect,
complication due to medical treatment, or re-injury, choose the initial injury or
illness. Example: If a laceration became infected developing into septicemia, choose
Cuts, lacerations.
- When two or more injuries or illnesses are indicated and one is more severe than
the other(s) and is not a sequela or complication of the other injury or illness,
select the more severe injury or illness Example: For sprained finger and fractured
wrist, choose Fractures..
- When a single event or exposure produces an injury and transmits a disease simultaneously,
and one is more severe than the other(s), select the more severe injury or disease.
Example: If a needlestick produces a puncture wound and transmits serum hepatitis,
choose Type B viral hepatitis (serum hepatitis)
- When two or more injuries or illnesses are indicated but neither of which can be
determined as being more severe than the others, select the appropriate multiple
injuries or illnesses classification code. Example: For fractured and severely burned
left leg, choose Fractures and burns
Nature of Injury or Illness - Titles and Descriptions
The Nature of Injury or Illness code structure is arranged so that traumatic injuries
and disorders are listed first (in Division 1) while diseases are listed in Divisions
2 through 9. Division 8 classifies multiple physical characteristics whose individual
codes are found in Divisions 1 through 6.
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1* : TRAUMATIC INJURIES AND DISORDERS This division classifies traumatic injuries and disorders, acute effects of external agents, and acute poisoning and toxic effects. Generally, a traumatic injury or disorder is the result of a single incident, event, or exposure over the course of a single shift. Cases coded to this division need not be consistent with the Occupational Safety and Health Administration (OSHA) recordkeeping definition of an injury or whether the employer reported the case as an injury or illness on the OSHA log.  |
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2* : DISEASES AND DISORDERS OF BODY SYSTEMS This division classifies toxic and non-toxic diseases or disorders affecting systems of the body. Diseases or disorders included may affect the whole named body system, or more commonly, affect only a part of the named body systems at the time of diagnosis. | Excludes: | traumatic injuries and disorders (Division 1); infectious and parasitic diseases (Division 3); neoplasms, tumors, and cancers (Division 4) |
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3* : INFECTIOUS AND PARASITIC DISEASES This division classifies five types of infections: bacterial, viral, rickettsial, fungal, and parasitic infections. These infectious agents are transmitted to a person through inhalation, ingestion, or contact with the skin. These diseases are generally recognized as communicable or transmissible, with a few of unknown but possibly infectious origin. | Excludes: | inflammatory diseases of the central nervous system due to viral, bacterial, fungal and other organisms (221); pneumonia and influenza due to viral and bacterial agents (243*); bacterial infections that are sequelae or complications of open wounds (13*); localized skin infections classified in 281* |
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4* : NEOPLASMS, TUMORS, AND CANCERS This division classifies diseases or conditions related to tumors, or neoplasms: the new growth of tissue in which the multiplication of cells is uncontrolled and progressive. The behavior of tumors or neoplasms may be benign, cancerous, or of uncertain behavior at the time of diagnosis. |
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5* : SYMPTOMS, SIGNS, AND ILL-DEFINED CONDITIONS This division classifies symptoms, signs, or abnormal results from laboratory or investigative medical tests or procedures. It includes those ill-defined conditions that cannot be classified elsewhere. Codes from this division should be used when no specific diagnosis is named and cannot be inferred from information found on the source document. This division includes sick building syndrome. Symptoms and ill-defined conditions resulting from traumatic incidents or exposures are classified in Division 1. |
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6* : OTHER DISEASES, CONDITIONS, AND DISORDERS This division classifies physical characteristics for which there is sufficient information for coding purposes, but no specific code exists in previous divisions of the nature of injury or illness structure. |
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7 : EXPOSURES TO DISEASE—NO ILLNESS INCURRED This division is used for cases in which there was no injury or illness incurred. It includes instances in which the worker was exposed to a disease, but did not come down with the illness or exhibit any symptoms. For example, this code would be selected if there was an exposure to tuberculosis, but TB test results were negative. |
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8 : MULTIPLE DISEASES, CONDITIONS, AND DISORDERS This division classifies multiple physical characteristics whose individual codes are found in two or more of the following divisions: Systemic Diseases and Disorders; Infectious and Parasitic Diseases; Neoplasms, Tumors, and Cancers; Symptoms, Signs, and Ill-defined Conditions; and Other Diseases, Conditions, and Disorders. Multiple traumatic injuries and disorders are coded in 18. |
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9999 : Nonclassifiable This code is used for cases where there is insufficient information to select even an unspecified code at the division level. |
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