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ICD-O-3 Site Codes
Cancers of head and neck sites include many cell types, signs, symptoms, and prognoses, but they are generally diagnosed and treated in a similar fashion. This chapter discusses all head and neck sites with the exception of the malignancies of the central nervous system and the senses (eye and ear). For reporting purposes, head and neck cancers in ICD-O-3 code range C00.0 to C14.8 are often grouped together, while the paranasal sinuses and nasal cavity are grouped with the respiratory organs, and the thyroid gland is reported separately.
Related Terms and Adjectives
| Site | Related Term(s) |
|---|---|
| Lip | Labio-, labial, vermillion border |
| Tongue | Glosso-, lingual, lallio- |
| Anterior 2/3 of tongue | Mobile tongue, anterior tongue |
| Base (tongue) | Root (tongue) |
| Gum | Gingival, alveolar, periodontal |
| Palate | Palato-, roof of mouth |
| Cheek (inside) | Buccal, interal cheek |
| Vestibule | Sulcus (pocket or space between lip and gum) |
| Retromolar area | Retromolar angle, retromolar trigone |
| Mouth | Oral cavity, oral mucosa, buccal cavity |
| Pharynx | Pharyngeal, pharyngo- |
| Oropharynx | Oropharyngeal, mesopharynx, fauces |
| Nasopharynx | Nasopharyngeal |
| Hypopharynx | Laryngopharynx |
| Adenoid | Pharyngeal tonsil, posterior wall of nasopharynx |
| Anterior wall of nasopharynx | Pharyngeal fornix, choana, posterior wall of nasal septum |
| Larynx | Laryngeal, laryngo-, glottic |
| True vocal cord | Vocal cord, true cord, vocal fold |
| False vocal cord | Vestibular fold |
| Tonsil | Palatine, faucial |
| Tonsillar pillar | Palatoglossal arch, glossopalatal arch, faucial pillar |
| Salivary gland | Sialo- |
| Submandibular (gland) | Submaxillary (gland) |
| Cricopharynx | Cricoid |
| Pharyngoesophagus | Postcricoid |
| Arytenoid epiglottis | Aryepiglottic |
| Aryepiglottic fold | Arytenoid fold, arytenoid |
| Thyroid | Thyro-, isthmus, isthm- |
| Regional lymph nodes | See Major Lymph Node Chains of Head page for synonymous words |
ICD-O-3 Codes
| ICD-O-3 | Term |
|---|---|
| C00.0 | External upper lip |
| C00.1 | External lower lip |
| C00.2 | External lip, NOS |
| C00.3 | Mucosa of upper lip |
| C00.4 | Mucosa of lower lip |
| C00.5 | Mucosa of lip, NOS |
| C00.6 | Commissure of lip |
| C00.8 | Overlapping lesion of lip |
| C00.9 | Lip, NOS (excludes Skin of lip C44.0) |
| ICD-O-3 | Term |
|---|---|
| C01.9 | Base of tongue, NOS |
| ICD-O-3 | Term |
|---|---|
| C02.0 | Dorsal surface of tongue, NOS |
| C02.1 | Border of tongue |
| C02.2 | Ventral surface of tongue, NOS |
| C02.3 | Anterior 2/3 of tongue, NOS |
| C02.4 | Lingual tonsil |
| C02.8 | Overlapping lesion of tongue |
| C02.9 | Tongue, NOS |
| ICD-O-3 | Term |
|---|---|
| C03.0 | Upper gum |
| C03.1 | Lower gum |
| C03.9 | Gum, NOS |
| ICD-O-3 | Term |
|---|---|
| C04.0 | Anterior floor of mouth |
| C04.1 | Lateral floor of mouth |
| C04.8 | Overlapping lesion of floor of mouth |
| C04.9 | Floor of mouth, NOS |
| ICD-O-3 | Term |
|---|---|
| C05.0 | Hard palate |
| C05.1 | Soft palate, NOS (excludes Nasopharyngeal surface of soft palate C11.3) |
| C05.2 | Uvula |
| C05.8 | Overlapping lesion of palate |
| C05.9 | Palate, NOS |
| ICD-O-3 | Term |
|---|---|
| C06.0 | Cheek mucosa |
| C06.1 | Vestibule of mouth |
| C06.2 | Retromolar area |
| C06.8 | Overlapping lesion of other and unspecified parts of mouth |
| C06.9 | Mouth, NOS |
| ICD-O-3 | Term |
|---|---|
| C07.9 | *Parotid gland |
| ICD-O-3 | Term |
|---|---|
| C08.0 | *Submandibular gland |
| C08.1 | *Sublingual gland |
| C08.8 | Overlapping lesion of major salivary glands |
| C08.9 | *Major salivary gland, NOS (excludes minor salivary gland, NOS C06.9) |
| ICD-O-3 | Term |
|---|---|
| C09.0 | *Tonsillar fossa |
| C09.1 | *Tonsillar pillar |
| C09.8 | Overlapping lesion of tonsil |
| C09.9 | *Tonsil, NOS (excludes lingual tonsil C02.4 and pharyngeal tonsil C11.1) |
| ICD-O-3 | Term |
|---|---|
| C10.0 | Vallecula |
| C10.1 | Anterior surface of epiglottis |
| C10.2 | Lateral wall of oropharynx |
| C10.3 | Posterior wall of oropharynx |
| C10.4 | Branchial cleft (site of neoplasm) |
| C10.8 | Overlapping lesion of oropharynx |
| C10.9 | Oropharynx, NOS |
| ICD-O-3 | Term |
|---|---|
| C11.0 | Superior wall of nasopharynx |
| C11.1 | Posterior wall of nasopharynx |
| C11.2 | Lateral wall of nasopharynx |
| C11.3 | Anterior wall of nasopharynx |
| C11.8 | Overlapping lesion of nasopharynx |
| C11.9 | Nasopharynx, NOS |
| ICD-O-3 | Term |
|---|---|
| C12.9 | Pyriform sinus |
| ICD-O-3 | Term |
|---|---|
| C13.0 | Postcricoid region |
| C13.1 | Hypopharyngeal aspect of aryepiglottic fold, NOS (excludes laryngeal aspect of aryepiglottic fold C32.1) |
| C13.2 | Posterior wall of hypopharynx |
| C13.8 | Overlapping lesion of hypopharynx |
| C13.9 | Hypopharynx, NOS |
| ICD-O-3 | Term |
|---|---|
| C14.0 | Pharynx, NOS |
| C14.2 | Waldeyer's ring |
| C14.8 | Overlapping lesion of lip, oral cavity and pharynx |
| ICD-O-3 | Term |
|---|---|
| C30.0 | *Nasal cavity (excludes Nose, NOS C76.0) |
| C30.1 | Middle ear |
| ICD-O-3 | Term |
|---|---|
| C31.0 | *Maxillary sinus |
| C31.1 | Ethmoid sinus |
| C31.2 | *Frontal sinus |
| C31.3 | Sphenoid sinus |
| C31.8 | Overlapping lesion of accessory sinuses |
| C31.9 | Accessory sinus, NOS |
| ICD-O-3 | Term |
|---|---|
| C32.0 | Glottis |
| C32.1 | Supraglottis |
| C32.2 | Subglottis |
| C32.3 | Laryngeal cartilage |
| C32.8 | Overlapping lesion of larynx |
| C32.9 | Larynx, NOS |
| ICD-O-3 | Term |
|---|---|
| C73.9 | Thyroid gland |
* Specific sub sites of these organs which are considered lateral sites are indicated with an asterisk (*).