Short description: Astigmatism NOS. ICD-9-CM 367.20 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 367.20 should only be used for claims with a date of service on or before September 30, 2015.

What is Astigmatism - this comprehensive overview covers symptoms, causes, risk factors, tests & diagnosis, treatment options.

Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image on the retina.

What causes astigmatism? Astigmatism is usually present at birth but it can result from an injury, scar or operation to the eye, if the corneal surface is damaged.

Astigmatism NOS; Astigmatism, NOS: PharmGKB Accession Id: PA443452: External Vocabularies MeSH: Astigmatism (D001251) SnoMedCT: Unspecified astigmatism (193626006) SnoMedCT: Astigmatism NOS (193627002) SnoMedCT: Astigmatism (82649003) UMLS: C0004106 (C0004106) MedDRA: Astigmatism (10003569 .

What causes astigmatism? Who is at risk for astigmatism? What are symptoms of astigmatism?

ICD-9 Code: ‘36720’ Diagnosis - Astigmatism NOS (Astigmatism, unspecified) Tweet: Change Text Size . ICD-9 Code: ‘36720’ Diagnosis - Astigmatism NOS (Astigmatism, unspecified) ICD-9 Code: ‘36720’ Diagnosis - Astigmatism NOS (Astigmatism, unspecified) Structural Information. Field Name: Field Value: Revision: 9th Revision: Code Type: Diagnosis: Code: 36720: Description:

What Is Astigmatism? - Video. Astigmatism usually occurs when the front surface of your eye, the cornea, has an irregular curvature. Astigmatism is one of a group of eye conditions known as refractive errors and these errors cause a disturbance in the way that light rays are focused within your eye.

In the analysis of this form of astigmatism, it is most common to consider rays from a given point on the object, which propagate in two special planes.