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Malignant Neoplasm of the Stomach B002

Last amended 
26 June 2015
Current RMA Instruments:
Reasonable Hypothesis SOP
58 of 2014
Balance of Probabilities SOP
59 of 2014
Changes from Previous Instruments:

SOP Bulletin 70

ICD Coding:
  • ICD-9-CM Codes: 151
  • ICD-10-AM Codes: C16

This is a primary malignant cancer of the epithelial cells of the stomach.

Is specific diagnostic evidence required to apply the SOP?Yes.

Information on histology (from biopsy, an excised specimen, or autopsy) is required to confirm the diagnosis and apply the SOP.  The relevant medical specialist would be the treating oncologist, general surgeon, or gastroenterologist.

Are there sub-factors that require specific information? – Yes.

There is a factor for non-cardia carcinoma only. The cardia is that part of the stomach close to the entrance named for being close to the heart.

Diagnoses covered by SOP
  • adeno-, adenosquamous-, chorio-, diffuse-, intestinal-, squamous-, poorly differentiated- and undifferentiated- carcinoma of the stomach;
  • (including mucinous, papillary, signet ring and tubular adenocarcinoma of the stomach)
  • carcinoma of the (gastric) cardia; gastric carcinoma;
  • carcinoma of the stomach;
  • linitis plastica;
Conditions excluded from SOP
  • carcinoid of the stomach;
  • soft tissue sarcoma of the stomach, ICD code 171.8
  • non-Hodgkin’s lymphoma of the stomach, ICD code 202.8
  • Hodgkin’s lymphoma of the stomach, ICD code 201.9
  • Secondary/metastatic cancer/carcinoma involving the stomach (code to primary cancer site)
Unconfirmed diagnosis

If, after applying the above information, you are unable to confirm the diagnosis, you should then:

  1. seek medical officer advice about further investigation, or;
  2. re-encode the condition, if appropriate.