Q13.4 Other congenital corneal malformations

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Congenital malformation of cornea NOS
• Microcornea
• Peter's anomaly

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 743.41 Congenital anomalies of corneal size and shape (approximate)
• 743.44 Specified congenital anomalies of anterior chamber, chamber angle, and related structures (approximate)

Code annotations containing back-references to Q13.4

Back-references to Q13.4

• Type 1 Excludes: H18.7 Other and unspecified corneal deformities ("congenital malformations of cornea (Q13.3-Q13.4)")

Diagnosis Index entries for Q13.4

• Anomaly, anomalous (congenital) (unspecified type) › cornea (shape)
• Anomaly, anomalous (congenital) (unspecified type) › Peter's
• Axenfeld's › degeneration (calcareous)
• Cornea › plana
• Deformity › cornea (acquired) › congenital
• Embryotoxon
• Irregular, irregularity › contour of cornea (acquired) › congenital
• Keratectasia › congenital
• Keratoconus › congenital
• Keratomegaly
• Malformation (congenital) › cornea
• Melanosis › cornea (presenile) (senile) › congenital
• Microcornea (congenital)
• Peter's anomaly

Nearby codes

• Q13 Congenital malformations of anterior segment of eye
• Q13.0 Coloboma of iris
• Q13.1 Absence of iris
• Q13.2 Other congenital malformations of iris
• Q13.3 Congenital corneal opacity
• Q13.4 Other congenital corneal malformations (this code)
• Q13.5 Blue sclera
• Q13.8 Other congenital malformations of anterior segment of eye
• Q13.81 Rieger anomaly
• Q13.89 Other congenital malformations of anterior segment of eye
• Q13.9 Congenital malformation of anterior segment of eye, unspecified