Name	Value
NAME	SKIN MELANOMA
T-CLASS ENCODING	CBA CODE: TX ACOS CODE: TX > 4 mm/inv subcutaneous tiss CODE: T4a ACOS CODE: T4A Satellite(s) w/i 2 cm of primary tumor CODE: T4b ACOS CODE: T4B NA CODE: NA ACOS CODE: NA NET CODE: T0 ACOS CODE: T0 Melanoma 'in situ' CODE: Tis ACOS CODE: TIS 0.75 mm or less/inv papillary dermis CODE: T1 ACOS CODE: T1 0.76 to 1.5 mm/inv papillary-reticular CODE: T2 ACOS CODE: T2 1.5 to 4 mm/inv reticular dermis CODE: T3 ACOS CODE: T3 1.5 to 3 mm/inv reticalar dermis CODE: T3a ACOS CODE: T3A 3 to 4 mm/inv reticular dermis CODE: T3b ACOS CODE: T3B > 4 mm/inv subcut tiss/satellites w/i 2 cm CODE: T4 ACOS CODE: T4
6TH EDITION (T) CODES	DESCRIPTION: CBA CODE: TX DESCRIPTION: 2.01 - 4 mm, no ulceration CODE: T3a DESCRIPTION: 2.01 - 4 mm, with ulceration CODE: T3b DESCRIPTION: > 4.0 mm, w or w/o ulceration CODE: T4 DESCRIPTION: > 4.0 mm, no ulceration CODE: T4a DESCRIPTION: > 4.0 mm, with ulceration CODE: T4b DESCRIPTION: Melanoma 'in situ' CODE: Tis DESCRIPTION: NA CODE: NA DESCRIPTION: NET CODE: T0 DESCRIPTION: < or = 1.0 mm, w or w/o ulceration CODE: T1 DESCRIPTION: < or = 1.0 mm/level II or III, no ulceration CODE: T1a DESCRIPTION: < or = 1.0 mm/level IV or V, with ulceration CODE: T1b DESCRIPTION: 1.01 - 2 mm, w or w/o ulceration CODE: T2 DESCRIPTION: 1.01 - 2 mm, no ulceration CODE: T2a DESCRIPTION: 1.01 - 2 mm, with ulceration CODE: T2b DESCRIPTION: 2.01 - 4 mm, w or w/o ulceration CODE: T3
6TH EDITION (T) CODE HELP	Primary Tumor (T) T1b Melanoma < or = 1.0 mm in thickness and level IV or V or with ulceration T2 Melanoma 1.01 - 2 mm in thickness with or without ulceration T2a Melanoma 1.01 - 2 mm in thickness, no ulceration T2b Melanoma 1.01 - 2 mm in thickness, with ulceration T3 Melanoma 2.01 - 4 mm in thickness with or without ulceration T3a Melanoma 2.01 - 4 mm in thickness, no ulceration T3b Melanoma 2.01 - 4 mm in thickness, with ulceration T4 Melanoma greater than 4.0 mm in thickness with or without ulceration T4a Melanoma greater than 4.0 mm in thickness, no ulceration T4b Melanoma greater than 4.0 mm in thickness, with ulceration TX Primary tumor cannot be assessed (e.g. shave biopsy or regressed melanoma) T0 No evidence of primary tumor Tis Melanoma 'in situ' T1 Melanoma < or = 1.0 mm in thickness with or without ulceration T1a Melanoma < or = 1.0 mm in thickness and level II or III, no ulceration
6TH EDITION (N) CODES	DESCRIPTION: NCA CODE: NX DESCRIPTION: 4 or more nodes/matted/in-transit/satellite(s) CODE: N3 DESCRIPTION: NA CODE: NA DESCRIPTION: NRN CODE: N0 DESCRIPTION: Metastasis in one lymph node CODE: N1 DESCRIPTION: Clinically occult (microscopic) metastasis CODE: N1a DESCRIPTION: Clinically apparent (macroscopic) metastasis CODE: N1b DESCRIPTION: 2 to 3 nodes/intralymphatic regional w/o nodal CODE: N2 DESCRIPTION: Clinically occult (microscopic) metastasis CODE: N2a DESCRIPTION: Clinically apparent (macroscopic) metastasis CODE: N2b DESCRIPTION: Satellite or in-transit metastasis w/o nodal met CODE: N2c
6TH EDITION (N) CODE HELP	Regional Lymph Nodes (N) N2a Clinically occult (microscopic) metastasis N2b Clinically apparent (macroscopic) metastasis N2c Satellite or in-transit metastasis without nodal metastasis N3 Metastasis in four or more regional modes, or matted metastatic nodes, or in-transit metastasis or satellite(s) with metastasis in regional node(s) NX Regional lymph nodes cannot be assessed N0 No regional lymph node metastasis N1 Metastasis in one lymph node N1a Clinically occult (microscopic) metastasis N1b Clinically apparent (macroscopic) metastasis N2 Metastasis in 2 or 3 regional nodes or intralymphatic regional metastasis without nodal metastases
6TH EDITION (M) CODES	DESCRIPTION: Distant metastasis cannot be assessed CODE: MX DESCRIPTION: No distant metastasis CODE: M0 DESCRIPTION: Distant metastasis CODE: M1 DESCRIPTION: Skin/subcutaneous tissues/distant nodes CODE: M1a DESCRIPTION: Metastasis to lung CODE: M1b DESCRIPTION: All other visceral/elevated LDH CODE: M1c DESCRIPTION: NA CODE: NA
6TH EDITION (M) CODE HELP	Distant Metastasis (M) metastasis at any site associated with an elevated serum lactic dehydrogenase (LDH) MX Distant metastasis cannot be assessed M0 No distant metastasis M1 Distant metastasis M1a Metastasis to skin, subcutaneous tissues or distant lymph nodes M1b Metastasis to lung M1c Metastasis to all other visceral sites or distant
N-CLASS ENCODING	NCA CODE: NX ACOS CODE: NX NRN CODE: N0 ACOS CODE: N0 3 cm or less in any reg lymph node(s) CODE: N1 ACOS CODE: N1 > 3 cm in reg ln/in-transit metastasis CODE: N2 ACOS CODE: N2 > 3 cm in any reg lymph node(s) CODE: N2a ACOS CODE: N2A In-transit metastasis CODE: N2b ACOS CODE: N2B Both (N2a and N2b) CODE: N2c ACOS CODE: N2C NA CODE: NA ACOS CODE: NA
M-CLASS ENCODING	Distant metastasis cannot be assessed CODE: MX ACOS CODE: MX No distant metastasis CODE: M0 ACOS CODE: M0 Distant metastasis CODE: M1 ACOS CODE: M1 Metastasis beyond regional lymph nodes CODE: M1a ACOS CODE: M1A Visceral metastasis CODE: M1b ACOS CODE: M1B NA CODE: NA ACOS CODE: NA
5TH EDITION T-CODE HELP	Primary Tumor (T) invades to papillary-reticular dermal interface (Clark's Level III) T3 Tumor more than 1.5 mm but not more than 4 mm in thickness and/or invades the reticular dermis (Clark's Level IV) T3a Tumor more than 1.5 mm but not more than 3 mm in thickness T3b Tumor more than 3 mm but not more than 4 mm in thickness T4 Tumor more than 4 mm in thickness and/or invades the subcutaneous tissue (Clark's Level V) and/or satellite(s) within 2 cm of the primary tumor T4a Tumor more than 4 mm in thickness and/or invades the subcutaneous tissue T4b Satellite(s) within 2 cm of the primary tumor TX Primary tumor cannot be assessed T0 No evidence of primary tumor Tis Melanoma 'in situ' (atypical melanocytic hyperplasia, severe melanocytic dysplasia), not an invasive malignant lesion (Clark's Level I) T1 Tumor 0.75 mm or less in thickness and invades the papillary dermis (Clark's Level II) T2 Tumor more than 0.75 mm but not more than 1.5 mm in thickness and/or
5TH EDITION N-CODE HELP	Regional Lymph Nodes (N) N2a Metastasis more than 3 cm in greatest dimension in any regional lymph node(s) N2b In-transit metastasis N2c Both (N2a and N2b) Note: In-transit metastasis involves skin or subcutaneous tissue more than 2 cm from the primary tumor but not beyond the regional lymph nodes. NX Regional lymph nodes cannot be assessed N0 No regional lymph node metastasis N1 Metastasis 3 cm or less in greastest dimension in any regional lymph node(s) N2 Metastasis more than 3 cm in greatest dimension in any regional lymph node(s) and/or in-transit metastasis
5TH EDITION M-CODE HELP	Distant Metastasis (M) MX Distant metastasis cannot be assessed M0 No distant metastasis M1 Distant metastasis M1a Metastasis in skin or subcutaneous tissue or lymph node(s) beyond the regional lymph nodes M1b Visceral metastasis

SKIN MELANOMA (22) AJCC STAGING GROUPS (164.33)