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  2. ICD-10-CM Codes List
  3. Q00-Q99
  4. Q10-Q18
  5. Congenital malformations of eyelid, lacrimal apparatus and orbit (Q10)

Congenital malformations of eyelid, lacrimal apparatus and orbit (Q10)

The Q10 ICD-10 codes classify congenital malformations affecting the eyelid, lacrimal apparatus, and orbit. These codes are essential for diagnosing and documenting structural abnormalities present from birth in these eye and orbit-related areas.

The ICD-10 code for congenital ptosis (Q10.0) covers drooping of the upper eyelid at birth, known also by terms such as "congenital myogenic ptosis" or "blepharoptosis." Q10.1 captures congenital ectropion, involving eyelid turning outward, and Q10.2 refers to congenital entropion, where the eyelid turns inward. Q10.3 includes other congenital eyelid defects like distichiasis (extra eyelashes) or ankyloblepharon (eyelid fusion). Q10.4 and Q10.5 address congenital absence or blockage of the lacrimal (tear) drainage system, respectively. The Q10.6 category involves other congenital lacrimal apparatus malformations, such as lacrimal fistulas or punctum abnormalities. Finally, Q10.7 identifies congenital deformities of the orbit including bony and soft tissue abnormalities and associated vascular issues. These codes enable precise classification of specific rare conditions like "congenital superior sulcus anomaly of orbit" or "congenital nasolacrimal duct obstruction."

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • cryptophthalmos NOS Q11.2
  • cryptophthalmos syndrome Q87.0

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Hypertelorism

Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.

Hypohidrosis

Abnormally diminished or absent perspiration. Both generalized and segmented (reduced or absent sweating in circumscribed locations) forms of the disease are usually associated with other underlying conditions.

Xerostomia

Decreased salivary flow.