H18.4

Corneal degeneration

Non-billable header

H18.4 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Note: Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

Not coded here — never report together with this code.

Not included here — may be reported together when both conditions exist.

certain conditions originating in the perinatal period (P04-P96) (from H18)
certain infectious and parasitic diseases (A00-B99) (from H18)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from H18)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from H18)
diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-) (from H18)
endocrine, nutritional and metabolic diseases (E00-E88) (from H18)
injury (trauma) of eye and orbit (S05.-) (from H18)
injury, poisoning and certain other consequences of external causes (S00-T88) (from H18)
neoplasms (C00-D49) (from H18)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from H18)
syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71) (from H18)