Valid for Submission
G90.2 is a billable diagnosis code used to specify a medical diagnosis of horner's syndrome. The code G90.2 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code G90.2 might also be used to specify conditions or terms like acquired horner syndrome, acquired left-sided horner syndrome, acquired right-sided horner syndrome, congenital horner syndrome, horner's syndrome pupil , o/e - horner's syndrome, etc.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G90.2:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Bernard(-Horner) syndrome
- Cervical sympathetic dystrophy or paralysis
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G90.2 are found in the index:
- - Bernard-Horner syndrome - G90.2
- - Claude Bernard-Horner syndrome - G90.2
- - Dystrophy, dystrophia
- - Horner (-Claude Bernard) syndrome - G90.2
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Acquired Horner syndrome
- Acquired left-sided Horner syndrome
- Acquired right-sided Horner syndrome
- Congenital Horner syndrome
- Horner's syndrome pupil
- O/E - Horner's syndrome
- Persistent miosis
- HORNER SYNDROME-. a syndrome associated with defective sympathetic innervation to one side of the face including the eye. clinical features include miosis; mild blepharoptosis; and hemifacial anhidrosis decreased sweatingsee hypohidrosis. lesions of the brain stem; cervical spinal cord; first thoracic nerve root; apex of the lung; carotid artery; cavernous sinus; and apex of the orbit may cause this condition. from miller et al. clinical neuro ophthalmology 4th ed pp500 11
Convert G90.2 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code G90.2 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Autonomic Nervous System Disorders
Also called: Dysautonomia
Your autonomic nervous system is the part of your nervous system that controls involuntary actions, such as the beating of your heart and the widening or narrowing of your blood vessels. When something goes wrong in this system, it can cause serious problems, including
- Blood pressure problems
- Heart problems
- Trouble with breathing and swallowing
- Erectile dysfunction in men
Autonomic nervous system disorders can occur alone or as the result of another disease, such as Parkinson's disease, alcoholism and diabetes. Problems can affect either part of the system, as in complex regional pain syndromes, or all of the system. Some types are temporary, but many worsen over time. When they affect your breathing or heart function, these disorders can be life-threatening.
Some autonomic nervous system disorders get better when an underlying disease is treated. Often, however, there is no cure. In that case, the goal of treatment is to improve symptoms.
NIH: National Institute of Neurological Disorders and Stroke
- Autonomic neuropathy (Medical Encyclopedia)
- Multiple system atrophy (Medical Encyclopedia)
[Learn More in MedlinePlus]
Horner syndrome Horner syndrome is a disorder that affects the eye and surrounding tissues on one side of the face and results from paralysis of certain nerves. Horner syndrome can appear at any time of life; in about 5 percent of affected individuals, the disorder is present from birth (congenital).Horner syndrome is characterized by drooping of the upper eyelid (ptosis) on the affected side, a constricted pupil in the affected eye (miosis) resulting in unequal pupil size (anisocoria), and absent sweating (anhidrosis) on the affected side of the face. Sinking of the eye into its cavity (enophthalmos) and a bloodshot eye often occur in this disorder. In people with Horner syndrome that occurs before the age of 2, the colored part (iris) of the eyes may differ in color (iris heterochromia), with the iris of the affected eye being lighter in color than that of the unaffected eye. Individuals who develop Horner syndrome after age 2 do not generally have iris heterochromia.The abnormalities in the eye area related to Horner syndrome do not generally affect vision or health. However, the nerve damage that causes Horner syndrome may result from other health problems, some of which can be life-threatening.
[Learn More in MedlinePlus]