Q.1: THYROID

For Cases Diagnosed prior to January 1, 2003

C73.9
SURGICAL APPROACH

 

Code

Description

0

None; no cancer-directed surgery of primary site

1

Endoscopy, NOS

2

 

Not image guided

3

 

Image guided

4

Open, NOS

5

 

Not assisted by endoscopy

6

 

Assisted by endoscopy

9

Unknown; not stated; death certificate only

 

SURGERY OF PRIMARY SITE

 

Code

Description

00

None; no cancer-directed surgery of primary site

10

Removal of less than a lobe, NOS

11

 

Local surgical excision

12

 

Removal of a partial lobe only

20

Lobectomy and/or isthmectomy

21

 

Lobectomy only

22

 

Isthmectomy only

23

 

Lobectomy with isthmus

30

Removal of a lobe and partial removal of the contralateral lobe

40

Subtotal or near total thyroidectomy

50

Total thyroidectomy

80

Thyroidectomy, NOS

90

Surgery, NOS

99

Unknown if cancer-directed surgery performed; death certificate only

 

SURGICAL MARGINS

 

Code

Description

0

All margins grossly and microscopically negative

1

Margins involved, NOS

2

 

Microscopic involvement

5

 

Macroscopic involvement

7

Margins not documented

8

No cancer-directed surgery of primary site

9

Unknown whether margins were involved or negative; death certificate only

 

SCOPE OF REGIONAL LYMPH NODE SURGERY

The regional lymph nodes are the cervical and upper mediastinal lymph nodes.

Terminology of neck dissection (Robbins et al. 19): A radical neck dissection includes the removal of all ipsilateral cervical lymph node groups, i.e., lymph nodes from levels I through V (submental, submandibular, cranial jugular, medial jugular, caudal jugular, dorsal cervical nodes along the accessory nerve, and supraclavicular), and removal of the spinal accessory nerve, internal jugular vein and sternocleidomastoid muscle. In a modified radical neck dissection the same lymph nodes are removed as in a radical neck dissection; however, one or more non lymphatic structures are preserved. A selective neck dissection is a neck dissection with preservation of one or more lymph nodes group routinely removed in radical neck dissection.

 

Code

Description

0

No regional lymph nodes removed

1

Regional lymph nodes removed, NOS

2

Neck dissection, NOS

3

 

Selective, limited; nodal sampling; "berry picking"

4

 

Modified/modified radical

5

 

Radical

9

Unknown; not stated; death certificate only

 

NUMBER OF REGIONAL LYMPH NODES EXAMINED

 

Code

Description

00

No regional lymph nodes removed

01

One regional lymph node removed

02

Two regional lymph nodes removed

..

 

90

Ninety or more regional lymph nodes removed

95

No regional lymph nodes removed but aspiration of regional lymph nodes was performed

96

Regional lymph node removal documented as a sampling and number of lymph nodes unknown/not stated

97

Regional lymph node removal documented as dissection and number of lymph nodes unknown/not stated

98

Regional lymph nodes surgically removed but number of lymph nodes unknown/not stated and not documented as sampling or dissection

99

Unknown; not stated; death certificate only

 

SURGERY OF OTHER REGIONAL SITE(S), DISTANT SITE(S) OR DISTANT LYMPH NODE(S)

 

Code

Description

0

None; no surgery to other regional or distant sites

1

Surgery to other sites or nodes, NOS; unknown if regional or distant

2

 

Other regional sites

3

 

Distant lymph nodes

4

 

Distant sites

5

 

Combination of 4 with 2 or 3

9

Unknown; not stated; death certificate only

 

RECONSTRUCTION/RESTORATION - FIRST COURSE

 

Code

Description

9

Not applicable (There are no known reconstructive procedures for this site.)

 

 

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