The calculator in question is the TNM Classification for Prostate Cancer. TNM stands for Tumor, Nodes, and Metastases, and it is a globally recognized system used to stage different types of cancers, including prostate cancer. 

This classification system is applicable to patients diagnosed with prostate cancer. It helps clinicians to determine the extent of cancer spread, which is crucial for planning treatment and predicting prognosis. 

The TNM system for prostate cancer includes three components: T (Tumor), which describes the size and extent of the primary tumor; N (Nodes), which indicates whether the cancer has spread to nearby lymph nodes; and M (Metastases), which shows if the cancer has metastasized to other parts of the body.

There are no specific exclusion criteria for the use of the TNM classification system in prostate cancer. However, it may not be applicable or useful in patients with benign prostatic hyperplasia or other non-cancerous conditions of the prostate. It is also less useful in patients with advanced disease where the focus is on symptom management rather than curative treatment.

TNM classification for prostate cancer

# Criteria
 ## Tumor classification
A. Tx: Primary tumor cannot be assessed
B. T0: No evidence of primary tumor
C. T1a: Clinically inapparent, nonpalpable tumor; tumor incidental histologic finding in <= 5% of tissue resected
D. T1b: Clinically inapparent, nonpalpable tumor; tumor incidental histologic finding in > 5% of tissue resected
E. T1c: Clinically inapparent, nonpalpable tumor; tumor identified by needle biopsy found in one or both sides
F. T2a: Palpable tumor confined within the prostate; tumor involves one-half of one side or less
G. T2b: Palpable tumor confined within the prostate; tumor involves more than one-half of one side but not both sides
H. T2c: Palpable tumor confined within the prostate; tumor involves both sides
I. T3a: Extraprostatic extension (unilateral or bilateral)
J. T3b: Tumor invading seminal vesicles
K. T4: Tumor fixed or invading adjacent structures other than seminal vesicles, such as external sphincter, rectum, bladder, levator muscles, and/or pelvic wall
## Lymph node classification
L. Nx: Regional lymph nodes cannot be assessed
M. N0: No regional lymph node metastasis
N. N1: Metastases in regional lymph nodes
## Distant metastasis
O. M0: No distant metastasis
P. M1a: Nonregional lymph node metastases
Q. M1b: Bone metastases
R. M1c: Other sites, with or without bone disease
## Prostate-specific antigen level (ng/mL)
R. < 10
S. 10-20
T. >= 20
## Grade group
U. 1
V. 2
W. 3
X. 4
Y. 5

# Conditions
- ((C or D or E) and M and O and R and U) or (F and M and O and R and U)
- ((C or D or E) and M and O and S and U) or (F and M and O and S and U) or ((G or H) and M and O and (R or S) and U)
- (C or D or E or F or G or H) and M and O and (R or S) and V
- (C or D or E or F or G or H) and M and O and (R or S) and (W or X)
- (C or D or E or F or G or H) and M and O and T and (U or V or W or X)
- (I or J or K) and M and O and (R or S or T) and (U or V or W or X)
- (C or D or E or F or G or H or I or J or K) and M and O and (R or S or T) and Y
- (C or D or E or F or G or H or I or J or K) and N and O and (R or S or T) and (U or V or W or X or Y)
- (C or D or E or F or G or H or I or J or K) and (M or N) and (P or Q or R) and (R or S or T) and (U or V or W or X or Y)
- true