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NAACCR Data Dictionary
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Version 25
Data Item #420: Histology (92-00) ICD-O-2

* indicates required field

Length: 4
Source of Standard: SEER/CoC
Section Name: Cancer Identification
Record Types: A, M, C, I

XML NAACCR ID: histologyIcdO2

Parent XML Element: Tumor

Alternate Names:

  • Histology (CoC)
  • ICD-O-2 Histology (CCCR)

Required Status:

NPCR Collect: RH - Historically collected and currently transmitted
CoC Collect: RH - Historically collected and currently transmitted
SEER Collect: RH - Historically collected and currently transmitted
CCCR Collect: RH - Historically collected and currently transmitted

Description:

Codes for the histologic type of the tumor being reported using ICD-O-2. NAACCR adopted ICD-O-2 as the standard coding system for tumors diagnosed in 1992 and later and recommended that prior cases be converted to ICD-O-2.

Note: See Histology (73-91) ICD-O-1 [1971] for ICD-O-1 and field trial codes.

Item Data Type:

digits

Allowable Values

8000-9989, Refer to ICD-0-2

Codes:

See ICD-O-2,^15^ Morphology Section

Code Notes:

Clarification of Required Status

This data item is required by all standard-setting organizations for tumors diagnosed from January 1, 1992, through December 31, 2000, and recommended for tumors diagnosed before 1992.

When the histologic type is coded according to ICD-O-2, the histology code must be reported in Histology (92-00) ICD-O-2 [420], with behavior coded in Behavior (92-00) ICD-O-2 [430].

For information on required status for related data items for histologic type and behavior when coded according to ICD-O-3, see Histologic Type ICD-O-3 [522] and Behavior Code ICD-O-3 [523].