(3) If the patient is admitted specifically for chemotherapy or radiotherapy,
principal diagnosis is admission for chemotherapy or radiotherapy.
c. The patient is admitted for restaging:
(1) If a new neoplasm is found, the neoplasm is principal.
(2) If known neoplasm has grown, the neoplasm is principal.
(3) If nothing new is found, admission for follow-up examination is principal.
1. The Table of Neoplasms give the code numbers for neoplasms by anatomical site.
For each site there are five possible code numbers according to whether the neoplasm
in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature.
DIAGNOSIS: Carcinoma in situ, rectum
2. Primary site is still prese nt (solid tumors). Code the primary site using codes from
chapter 2 (codes 14.-195.8). Code, also, any secondary sites which may be
present, using codes 196.-199.1.
DIAGNOSIS: Adenocarcinoma of prostate gland
metastatic cancer to urinary bladder.
3. Primary site previously treated (solid tumors). The primary site was previously
excised or eradicated with no recurrence of original primary site. (See coding principles
in paragraphs 2a and 2b above.)
DIAGNOSIS: Bladder tumor examination; surgery
performed 6 months ago for malignancy
of bladder. No evidence of recurrence.
4. A primarily malignant neoplasm that overlaps two or more subcategories within a
three-digit rubric and whose poi nt of origin cannot be determined should be classified to
the subcategory ".8" (Other).
DIAGNOSIS: Glioma of left parieto-occipital area.