ICDcodes.org
FY2027

ICD-10-CM code comparisons

2,041 pairs of codes that ICD-10-CM says can never be reported together, 973 of them spanning different chapters. Each pair is compared side by side with the inclusion terms that decide which one the documentation supports.

Why these pairs and not others
Every pair here comes from an Excludes1 note — ICD-10-CM explicitly declaring two codes mutually exclusive. That makes them the pairs the classification itself considers confusable, rather than pairs we guessed at.

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

Y

Z

FY2027. See Excludes1 vs Excludes2 for how the note works, including when both codes may legitimately be reported.