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Malignant Neoplasm of the Larynx B013

Last amended 
17 May 2022
Current RMA Instruments

Reasonable Hypothesis SOP

41 of 2022

Balance of Probabilities SOP

42 of 2022

Changes from previous Instruments

SOP Bulletin 230


ICD Coding


  • ICD-9-CM Code: 161
  • ICD-10-AM Code: C32
Brief description

The larynx is the upper part of the wind pipe and it includes the vocal cords. This SOP covers primary cancers arising in the larynx.

Confirming the diagnosis

The diagnosis requires confirmation with histology, with tissue obtained from a biopsy or surgery.

The relevant medical specialist is an ENT surgeon, head and neck surgeon, or oncologist.

Additional diagnoses covered by SOP

Malignant neoplasm of the glottis, supraglottis or subglottis

Conditions excluded from SOP
  • Carcinoid of the larynx#
  • Hodgkin’s lymphoma of the larynx*
  • non-Hodgkin lymphoma of the larynx*
  • Secondary/metastatic cancer involving the larynx (code to primary cancer site)
  • soft tissue sarcoma of the larynx*

* another SOP applies

# non-SOP condition

Clinical onset

The most common presenting symptom is change in voice / persistent hoarseness.  Other symptoms include, cough, haemoptysis (coughing blood), and strider (noisy, high pitched breathing). The condition may also be found after investigation of palpable lymph nodes in the neck.

Clinical worsening

The only SOP worsening factor is for inability to obtain appropriate clinical management.  Appropriate management of the disease varies considerably with the type and stage of the disease and other factors.  A delay in obtaining treatment could lead to a worsening of the prognosis.