Person with cancer—regional lymph node metastasis status, N stage (UICC TNM Classification of Malignant Tumours, 8th ed) code X[XX]

Identifying and definitional attributes

Metadata item type:Data Element
Short name:Cancer staging—N stage code
METeOR identifier:719701
Registration status:Health, Candidate 06/08/2019
Definition:

The absence or presence and extent of regional lymph node metastasis in a person with cancer, as represented by a code.

Data Element Concept:Person with cancer—regional lymph node metastasis status

Value domain attributes

Representational attributes

Classification scheme:Union for International Cancer Control (UICC) TNM Classification of Malignant Tumours 8th edition
Representation class:Code
Data type:String
Format:X[XX]
Maximum character length:3
Supplementary values:
ValueMeaning
997Not applicable
998Unknown
999Not stated/inadequately described

Collection and usage attributes

Guide for use:

Valid N codes from the current edition of the UICC TNM Classification of Malignant Tumours.

Record the stage in Arabic numerals and the appropriate upper or lower case alphabetic character omitting the prefix "N". For example, record stage N1b for malignant melanoma of the skin as "1b".

Record if the N stage value has a prefix of “c” or “p”. For example, record retinoblastoma N stage pN1 as “p1”.

Refer to the TNM Supplement: A Commentary on Uniform Use, 5th Edition for coding rules.

Source and reference attributes

Reference documents:

Wittekind C et al (Editors) 2019. Union for International Cancer Control (UICC): TNM supplement: A commentary on uniform use, 5th edition. Wiley-Blackwell.

Data element attributes

Collection and usage attributes

Guide for use:

Record the absence or presence and extent of regional lymph node metastasis at the time of diagnosis of the cancer.

TNM staging applies to solid tumours excluding brain tumours.

Choose the lower (less advanced) N category when there is any uncertainty.

The current edition of the AJCC (American Joint Committee on Cancer) Cancer Staging Manual provides an equivalent and alternative source of N stage codes.

Staging classification systems other than the TNM classification system are recorded separately.

Collection methods:

This information should be obtained from the patient's medical record.

Comments:

Cancer stage is an important determinant of treatment and prognosis, and is used to evaluate new treatments and analyse outcomes. Survival analysis is adjusted by stage at diagnosis and distribution of cancer cases by type and stage.

Source and reference attributes

Submitting organisation:

Cancer Australia

Reference documents:

Brierley J, Gospodarowicz MK, Wittekind C (editors) 2016. Union for International Cancer Control (UICC): TNM Classification of Malignant Tumours, 8th edition. Hoboken, NJ: Wiley-Blackwell; 2016.

American Joint Committee on Cancer 2016. AJCC Cancer Staging Manual, 8th edition. New York: Springer

American College of Surgeons 2002. Facility Oncology Registry Data Standards (FORDS), 2016 revision. Commission on Cancer

Relational attributes

Related metadata references:

See also Cancer staging—staging basis of cancer, code A Health, Superseded 07/12/2011

See also Cancer staging—staging basis of cancer, code A Health, Standard 07/12/2011

See also Person with cancer—extent of primary cancer, TNM stage (UICC TNM Classification of Malignant Tumours, 8th ed) code X[XX] Health, Standard 16/01/2020

See also Person with cancer—primary tumour status, T stage (UICC TNM Classification of Malignant Tumours, 8th ed) code X[XXX] Health, Candidate 06/08/2019

Supersedes Person with cancer—regional lymph node metastasis status, N stage (UICC TNM Classification of Malignant Tumours, 7th ed) code X[XX] Health, Standard 07/12/2011