CS Extension

Notes

**Note 1**: In codes 390, 400, and 440, "multiple (satellite) nodules/tumors" includes satellitosis, multifocal tumors, and intrahepatic metastases. **Note 2**: Major vascular invasion (code 630) is defined as invasion of the branches of the main portal vein (right or left portal vein, not including sectoral or segmental branches) or as invasion of one or more of the three hepatic veins (right, middle, or left). Invasion of hepatic artery or vena cava is coded to 660.

Code	Description	AJCC 7 T	AJCC 6 T	Summary Stage 1977 T	Summary Stage 2000 T
100	Single lesion (one lobe) WITHOUT intrahepatic vascular invasion, including vascular invasion not stated	T1	T1	L	L
150	More than one lobe involved by contiguous growth (single lesion) WITHOUT intrahepatic vascular invasion, including vascular invasion not stated	T1	T1	RE	RE
170	Confined to liver, NOS Localized, NOS	T1	T1	L	L
200	OBSOLETE DATA CONVERTED V0200 See code 350 Single lesion (one lobe) WITH intrahepatic vascular invasion	ERROR:	ERROR:	ERROR:	ERROR:
250	Single lesion WITH involvement of one or more lobes of liver or extension within liver not stated, WITH extension to gallbladder WITHOUT vascular invasion, including vascular invasion not stated	T1	T1	RE	RE
270	Stated as T1 with no other information on extension	T1	T1	L	L
300	OBSOLETE DATA CONVERTED V0200 See code 390 Multiple (satellite) nodules/tumors (one lobe) WITHOUT intrahepatic vascular invasion, including vascular invasion not stated	ERROR:	ERROR:	ERROR:	ERROR:
350	Single lesion (one lobe ) WITH intrahepatic vascular invasion	T2	T2	L	L
370	More than one lobe involved by contiguous growth (single lesion) WITH vascular invasion	T2	T2	RE	RE
380	Single lesion WITH involvement of one or more lobes of liver or extension within liver not stated WITH extension to gallbladder WITH intrahepatic vascular invasion	T2	T2	RE	RE
390	Multiple (satellite) nodules/tumors (one lobe) WITHOUT intrahepatic vascular invasion, including vascular invasion not stated	Extension Size AJCC7	Extension Size AJCC6	L	L
400	Multiple (satellite) nodules/tumors (one lobe) WITH intrahepatic vascular invasion	Extension Size AJCC7	Extension Size AJCC6	L	L
420	Multiple (satellite) nodules/tumors (one lobe) WITH extension to gallbladder WITH or WITHOUT intrahepatic vascular invasion	Extension Size AJCC7	Extension Size AJCC6	RE	RE
440	Multiple (satellite) nodules/tumors in more than one lobe of liver or on surface of parenchyma Satellite nodules, NOS	Extension Size AJCC7	Extension Size AJCC6	D	RE
460	Stated as T2 with no other information on extension	T2	T2	L	L
500	OBSOLETE DATA CONVERTED V0200 See code 170 Confined to liver, NOS Localized, NOS	ERROR:	ERROR:	ERROR:	ERROR:
510	OBSOLETE DATA CONVERTED V0200 See code 150 More than one lobe involved by contiguous growth (single lesion) WITHOUT vascular invasion, including vascular invasion not stated	ERROR:	ERROR:	ERROR:	ERROR:
520	OBSOLETE DATA CONVERTED V0200 See code 370 More than one lobe involved by contiguous growth (single lesion) WITH vascular invasion	ERROR:	ERROR:	ERROR:	ERROR:
530	OBSOLETE DATA CONVERTED V0200 See code 250 Extension to gallbladder, extent within liver not stated	ERROR:	ERROR:	ERROR:	ERROR:
540	OBSOLETE DATA CONVERTED V0200 See code 250 Extension to gallbladder 530 + (100 or 510)	ERROR:	ERROR:	ERROR:	ERROR:
550	OBSOLETE DATA CONVERTED V0200 See code 380 Extension to gallbladder 530 + (200 or 520)	ERROR:	ERROR:	ERROR:	ERROR:
560	OBSOLETE DATA CONVERTED V0200 See code 420 Extension to gallbladder 530 + (300 or 400)	ERROR:	ERROR:	ERROR:	ERROR:
580	OBSOLETE DATA CONVERTED V0200 See code 645 Extrahepatic bile ducts	ERROR:	ERROR:	ERROR:	ERROR:
600	Stated as T3a with no other information regarding extension	T3a	T3	RE	RE
630	Single tumor (confined to one lobe) or multiple tumor(s) (confined to one lobe and not on surface of liver) WITH major vascular invasion: major branch(es) of portal or hepatic vein(s) (See Note 2)	T3b	T3	RE	RE
635	630 + 440 Single or multiple tumor(s) with major vascular invasion: major branch(es) of portal or hepatic vein(s) plus multiple nodules/tumors in more than one lobe of liver or on surface of parenchyma	T3b	T3	D	RE
638	Stated as T3b with no other information on extension	T3b	T3	RE	RE
639	Stated as T3 [NOS] with no other information on extension	T3NOS	T3	RE	RE
640	Direct extension/perforation of visceral peritoneum	T4	T4	RE	RE
645	Extrahepatic bile ducts	T4	T4	RE	RE
650	OBSOLETE DATA CONVERTED V0200 See code 440 Multiple (satellite) nodules/tumors in more than one lobe of liver or on surface of parenchyma Satellite nodules, NOS	ERROR:	ERROR:	ERROR:	ERROR:
660	Extension to hepatic artery or vena cava	T4	T4	RE	RE
670	OBSOLETE DATA CONVERTED V0200 See code 635 630+650	ERROR:	ERROR:	ERROR:	ERROR:
700	Diaphragm	T4	T4	RE	RE
750	OBSOLETE DATA RETAINED AND REVIEWED V0203 Perforation of visceral peritoneum included in 2 codes in CSv2: V0201, V0202. Any case coded 750 for perforation of visceral peritoneum should be recoded to 640. See codes 640, 755 Lesser omentum Ligament(s): Coronary Falciform Hepatoduodenal Hepatogastric Round (of liver) Triangular Perforation of visceral peritoneum Parietal peritoneum	T4	T4	RE	RE
755	Lesser omentum Ligament(s): Coronary Falciform Hepatoduodenal Hepatogastric Round (of liver) Triangular Parietal peritoneum	T4	T4	RE	RE
760	OBSOLETE DATA CONVERTED V0200 See code 770 (650 or 670) + any of (640 or 660 or 700 or 750)	ERROR:	ERROR:	ERROR:	ERROR:
770	(640, 645, 660, 700, or 755) + (440 or 635) Any extension coded in (640, 645, 660, 700, or 755) plus multiple tumors/nodules in more than one lobe of liver or on surface of parenchyma	T4	T4	D	RE
800	Further contiguous extension: Pancreas Pleura Stomach Other contiguous extension	T4	T4	D	D
805	OBSOLETE DATA CONVERTED V0203 See code 950 No evidence of primary tumor	ERROR:	ERROR:	ERROR:	ERROR:
810	Stated as T4 with no other information on extension	T4	T4	D	D
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown, extension not stated Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U

- For CS Extension codes 390, 400, 420, and 440 ONLY, the T category for AJCC 7 staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size AJCC 7 Table for this schema. - For CS Extension codes 390, 400, 420, and 440 ONLY, the T category for AJCC 6 staging is assigned based on the value of CS Tumor Size, as shown in the Extension Size AJCC 6 Table for this schema.