Chapter 7

H00–H59: Diseases of the Eye and Adnexa

Diseases of the Eye and Adnexa diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)

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

All Codes Billable Only

Internal Codes

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H04.219|
Epiphora due to excess lacrimation, unspecified lacrimal gland
H04.221|
Epiphora due to insufficient drainage, right side
H04.222|
Epiphora due to insufficient drainage, left side
H04.223|
Epiphora due to insufficient drainage, bilateral
H04.229|
Epiphora due to insufficient drainage, unspecified side
H04.301|
Unspecified dacryocystitis of right lacrimal passage
H04.302|
Unspecified dacryocystitis of left lacrimal passage
H04.303|
Unspecified dacryocystitis of bilateral lacrimal passages
H04.309|
Unspecified dacryocystitis of unspecified lacrimal passage
H04.311|
Phlegmonous dacryocystitis of right lacrimal passage
H04.312|
Phlegmonous dacryocystitis of left lacrimal passage
H04.313|
Phlegmonous dacryocystitis of bilateral lacrimal passages
H04.319|
Phlegmonous dacryocystitis of unspecified lacrimal passage
H04.321|
Acute dacryocystitis of right lacrimal passage
H04.322|
Acute dacryocystitis of left lacrimal passage
H04.323|
Acute dacryocystitis of bilateral lacrimal passages
H04.329|
Acute dacryocystitis of unspecified lacrimal passage
H04.331|
Acute lacrimal canaliculitis of right lacrimal passage
H04.332|
Acute lacrimal canaliculitis of left lacrimal passage
H04.333|
Acute lacrimal canaliculitis of bilateral lacrimal passages
H04.339|
Acute lacrimal canaliculitis of unspecified lacrimal passage
H04.411|
Chronic dacryocystitis of right lacrimal passage
H04.412|
Chronic dacryocystitis of left lacrimal passage
H04.413|
Chronic dacryocystitis of bilateral lacrimal passages
H04.419|
Chronic dacryocystitis of unspecified lacrimal passage
H04.421|
Chronic lacrimal canaliculitis of right lacrimal passage
H04.422|
Chronic lacrimal canaliculitis of left lacrimal passage
H04.423|
Chronic lacrimal canaliculitis of bilateral lacrimal passages
H04.429|
Chronic lacrimal canaliculitis of unspecified lacrimal passage
H04.431|
Chronic lacrimal mucocele of right lacrimal passage
H04.432|
Chronic lacrimal mucocele of left lacrimal passage
H04.433|
Chronic lacrimal mucocele of bilateral lacrimal passages
H04.439|
Chronic lacrimal mucocele of unspecified lacrimal passage
H04.511|
Dacryolith of right lacrimal passage
H04.512|
Dacryolith of left lacrimal passage
H04.513|
Dacryolith of bilateral lacrimal passages
H04.519|
Dacryolith of unspecified lacrimal passage
H04.521|
Eversion of right lacrimal punctum
H04.522|
Eversion of left lacrimal punctum
H04.523|
Eversion of bilateral lacrimal punctum
H04.529|
Eversion of unspecified lacrimal punctum
H04.531|
Neonatal obstruction of right nasolacrimal duct
H04.532|
Neonatal obstruction of left nasolacrimal duct
H04.533|
Neonatal obstruction of bilateral nasolacrimal duct
H04.539|
Neonatal obstruction of unspecified nasolacrimal duct
H04.541|
Stenosis of right lacrimal canaliculi
H04.542|
Stenosis of left lacrimal canaliculi
H04.543|
Stenosis of bilateral lacrimal canaliculi
H04.549|
Stenosis of unspecified lacrimal canaliculi
H04.551|
Acquired stenosis of right nasolacrimal duct

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