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Organization | Field Name | ID | Required |
|---|---|---|---|
KCR | Histology (Histology) | 30090 | yes |
NAACCR | Histologic Type ICD-O-3 | yes |
Field Length: 4
The current Solid Tumor Rules, the Hematopoietic and Lymphoid Neoplasm Coding Manual and Database, and the International Classification of Diseases for Oncology, Third Edition, Second Revision Morphology (ICD-O-3.2) are the standard references for histology codes.See the NAACCR website for additional updates for 2023
ICD-O-3.2
Standard setters have agreed to implement new histology terms and codes for ICD-O-3 based on the current versions of the World Health Organization Classification of Tumors. The update, referred to as ICD-O-3.2,
includes comprehensive tables listing histology codes and behavior codes in effect beginning with cases diagnosed in 2021 The new codes, new terms, and codes with changes to behavior are available at the NAACCR website.
Histology Coding for Solid Tumors
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Apply the site-specific histology coding rules in the current Solid Tumor Rules.Refer to the most current Solid Tumor Rules for histology code changes.
1. Beginning with cases diagnosed 01/01/2022, p16 test results can be used to code squamous cell carcinoma, HPV positive (8085) and squamous cell carcinoma, HPV negative (8086).
2. Beginning with cases diagnosed 01/01/2022, non-keratinizing squamous cell carcinoma, HPV positive is coded 8085 for sites listed in Head and Neck Solid Tumor Rules Table 5 only. A diagnosis of non-keratinizing squamous cell carcinoma, NOS is coded 8072.
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Solid Tumor Rules
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4. Clear cell papillary renal cell carcinoma is coded 8323/3. The 2016 WHO Classification of Tumors of the Urinary System and Male Genital Organs, 4th Edition, reclassified this histology as a /1 because it is low nuclear grade and is now thought to be a neoplasia. This change has not yet been implemented and it remains reportable as behavior /3.
Site-specific histology coding rules cover the following sites/types.
Primary Site | Topography |
|---|---|
Head and Neck | C000-C148, C300-C329, C410, C411, C442 |
Colon, Rectosigmoid, Rectum | C180-C189, C199, C209 |
Lung | C340-C349 |
Cutaneous Melanoma | C440-C449 with Histology 8720-8780 |
Breast | C500-C506, C508-C509 |
Kidney | C649 |
Urinary Sites | C659, C669, C670-C679, C680-C681, C688-C689 |
Non-malignant CNS Tumors | C700, C701, C709, C710-C719, C720-C725, C728, C729, C751-C753 |
Malignant CNS and Peripheral Nerves | C470-C479, C700, C701, C709, C710-C719, C720-C725, C728, C729, C751-C753 |
Other Sites | Excludes: Head and Neck, Colon |
, Lung, |
Melanoma of Skin, Breast, Kidney |
, Renal Pelvis, Ureter, Bladder, Brain, Lymphoma and Leukemia |
Histology Coding for Hematopoietic and Lymphatic Primaries
Apply the Histology Coding Rules in the Hematopoietic and Lymphoid Neoplasm Coding Manual and Database.
See also the NAACCR 2015 Implementation Guidelines and Recommendations: The Hematopoietic Conversion Documentation.
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