Page:ICD-10-CM (2010).djvu/2

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the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.

Code Also:

A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.

7th characters and placeholder X

For codes less than 6 characters that require a 7th character a placeholder X should be assigned for all characters less than 6. The 7th character must always be the 7th character of a code



CHAPTER 1
Certain infectious and parasitic diseases (A00–B99)
Includes: diseases generally recognized as communicable or transmissible
Use additional code for any associated drug resistance (Z16)
Excludes1: carrier or suspected carrier of infectious disease (Z22.-)
certain localized infections - see body system related chapters
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
influenza and other acute respiratory infections (J00–J22)
Excludes2: infectious and parasitic diseases specific to the perinatal period (P35–P39)

This chapter contains the following blocks:

A00–A09 Intestinal infectious diseases
A15–A19 Tuberculosis
A20–A28 Certain zoonotic bacterial diseases
A30–A49 Other bacterial diseases
A50–A64 Infections with a predominantly sexual mode of transmission
A65–A69 Other spirochetal diseases
A70–A74 Other diseases caused by chlamydiae
A75–A79 Rickettsioses
A80–A89 Viral infections of the central nervous system
A90–A99 Arthropod-borne viral fevers and viral hemorrhagic fevers
B00–B09 Viral infections characterized by skin and mucous membrane lesions
B10 Other human herpesviruses
B15–B19 Viral hepatitis
B20 Human immunodeficiency virus [HIV] disease
ICD 10 CM Tabular
Page 2
2010