Collaborative Stage for TNM 7 - Revised 06/03/2011 [ Schema ]
| Code | Description | TNM 7 Map | TNM 6 Map | SS77 Map | SS2000 Map |
| 050 | Benign or borderline brain tumor | NA | NA | NA | NA |
| 100 | Supratentorial tumor confined to: Cerebral hemisphere (cerebrum) or meninges of cerebral hemisphere (one side): Frontal lobe Occipital lobe Parietal lobe Temporal lobe | NA | NA | L | L |
| 110 | Infratentorial tumor confined to cerebellum or meninges of cerebellum (one side or midline): Vermis Lateral lobes Median lobe of cerebellum | NA | NA | L | L |
| 120 | Infratentorial tumor confined to: Brain stem or meninges of brain stem (one side): Medulla oblongata Midbrain (mesencephalon) Pons Hypothalamus Thalamus | NA | NA | L | L |
| 150 | Confined to brain, NOS Confined to meninges, NOS | NA | NA | L | L |
| 200 | Infratentorial tumor: Both cerebellum and brain stem involved with tumor on one side | NA | NA | L | L |
| 300 | Confined to ventricles Tumor invades or encroaches upon ventricular system | NA | NA | L | L |
| 400 | Tumor crosses the midline Tumor involves contralateral hemisphere Tumor involves corpus callosum (including splenium) | NA | NA | RNOS | RNOS |
| 500 | Supratentorial tumor extends infratentorially to involve: Cerebellum Brain stem Hypothalamus Pallium Posterior cranial fossa Thalamus | NA | NA | RNOS | RNOS |
| 510 | Infratentorial tumor extends supratentorially to involve: Cerebrum (cerebral hemisphere) (excluding hypothalamus, pallium, thalamus) Anterior cranial fossa Corpus callosum Middle cranial fossa Suprasellar brain Tapetum | NA | NA | RNOS | RNOS |
| 600 | Tumor invades: Bone (skull) Major blood vessel(s) Meninges (e.g., dura) Nerves, NOS Cranial nerves Spinal cord/canal | NA | NA | RNOS | RNOS |
| 700 | OBSOLETE DATA RETAINED AND REVIEWED V0203 See codes 100-600 and 710, CS Mets at DX code 20 Circulating cells in cerebral spinal fluid (CSF) Nasal cavity Nasopharynx Posterior pharynx Direct extension outside central nervous system (CNS) | NA | NA | D | D |
| 710 | Circulating cells in cerebral spinal fluid (CSF) | NA | NA | D | D |
| 750 | Extension to: Nasal cavity Nasopharynx Posterior pharynx Other direct extension outside CNS | NA | NA | D | D |
| 800 | Further contiguous extension | NA | NA | D | D |
| 950 | No evidence of primary tumor | NA | NA | U | U |
| 999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient record | NA | NA | U | U |