2012 ICD-9-CM Diagnosis Code 366.9 : Unspecified cataract

opacity or cloudiness of the crystalline lens, which may prevent a clear image from forming on the retina; may be congenital or caused by trauma, disease, or age.
Partial or complete opacity of the crystalline lens of one or both eyes that decreases visual acuity and eventually results in blindness. Some cataracts appear in infancy or in childhood, but most develop in older individuals. (Diagnostic Surgical Pathology, 3rd ed.)
Short description: Cataract NOS.
ICD-9-CM 366.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
You are viewing the 2012 version of ICD-9-CM 366.9.
More recent version(s) of ICD-9-CM 366.9: 2013.

366.9 Alternative Terminology

Convert 366.9 to ICD-10-CM

ICD-9-CM Volume 2 Index entries containing back-references to 366.9:

Cataract (anterior cortical) (anterior polar) (black) (capsular) (central) (cortical) (hypermature) (immature) (incipient) (mature) 366.9
- anterior
  - and posterior axial embryonal 743.33
  - pyramidal 743.31
  - subcapsular polar
    - infantile, juvenile, or presenile 366.01
    - senile 366.13
- associated with
  - calcinosis 275.40 [366.42]
  - craniofacial dysostosis 756.0 [366.44]
  - galactosemia 271.1 [366.44]
  - hypoparathyroidism 252.1 [366.42]
  - myotonic disorders 359.21 [366.43]
  - neovascularization 366.33
- blue dot 743.39
- cerulean 743.39
- complicated NEC 366.30
- congenital 743.30
  - capsular or subcapsular 743.31
  - cortical 743.32
  - nuclear 743.33
  - specified type NEC 743.39
  - total or subtotal 743.34
  - zonular 743.32
- coronary (congenital) 743.39
  - acquired 366.12
- cupuliform 366.14
- diabetic 250.5 [366.41]
  - due to secondary diabetes 249.5 [366.41]
- drug-induced 366.45
- due to
  - chalcosis 360.24 [366.34]
  - chronic choroiditis (see also Choroiditis) 363.20 [366.32]
  - degenerative myopia 360.21 [366.34]
  - glaucoma (see also Glaucoma) 365.9 [366.31]
  - infection, intraocular NEC 366.32
  - inflammatory ocular disorder NEC 366.32
  - iridocyclitis, chronic 364.10 [366.33]
  - pigmentary retinal dystrophy 362.74 [366.34]
  - radiation 366.46
- electric 366.46
- glassblowers' 366.46
- heat ray 366.46
- heterochromic 366.33
- in eye disease NEC 366.30
- infantile (see also Cataract, juvenile) 366.00
- intumescent 366.12
- irradiational 366.46
- juvenile 366.00
  - anterior subcapsular polar 366.01
  - combined forms 366.09
  - cortical 366.03
  - lamellar 366.03
  - nuclear 366.04
  - posterior subcapsular polar 366.02
  - specified NEC 366.09
  - zonular 366.03
- lamellar 743.32
  - infantile juvenile, or presenile 366.03
- morgagnian 366.18
- myotonic 359.21 [366.43]
- myxedema 244.9 [366.44]
- nuclear 366.16
- posterior, polar (capsular) 743.31
  - infantile, juvenile, or presenile 366.02
  - senile 366.14
- presenile (see also Cataract, juvenile) 366.00
- punctate
  - acquired 366.12
  - congenital 743.39
- secondary (membrane) 366.50
  - obscuring vision 366.53
  - specified type, not obscuring vision 366.52
- senile 366.10
  - anterior subcapsular polar 366.13
  - combined forms 366.19
  - cortical 366.15
  - hypermature 366.18
  - immature 366.12
  - incipient 366.12
  - mature 366.17
  - nuclear 366.16
  - posterior subcapsular polar 366.14
  - specified NEC 366.19
  - total or subtotal 366.17
- snowflake 250.5 [366.41]
  - due to secondary diabetes 249.5 [366.41]
- specified NEC 366.8
- subtotal (senile) 366.17
  - congenital 743.34
- sunflower 360.24 [366.34]
- tetanic NEC 252.1 [366.42]
- total (mature) (senile) 366.17
  - congenital 743.34
  - localized 366.21
  - traumatic 366.22
- toxic 366.45
- traumatic 366.20
  - partially resolved 366.23
  - total 366.22
- zonular (perinuclear) 743.32
  - infantile, juvenile, or presenile 366.03
Degeneration, degenerative
- lens 366.9
  - infantile, juvenile, or presenile 366.00
  - senile 366.10
Intumescent, lens (eye) NEC 366.9
- senile 366.12
Opacity, opacities
- lens (see also Cataract) 366.9

366.8

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ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 366.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.

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