ICD-10 Code A50.31

Late congenital syphilitic interstitial keratitis

Version 2019 Billable Code
ICD-10: A50.31
Short Description:Late congenital syphilitic interstitial keratitis
Long Description:Late congenital syphilitic interstitial keratitis

Valid for Submission

ICD-10 A50.31 is a billable code used to specify a medical diagnosis of late congenital syphilitic interstitial keratitis. The code is valid for the year 2019 for the submission of HIPAA-covered transactions.

Code Classification

  • Certain infectious and parasitic diseases (A00–B99)
    • Infections with a predominantly sexual mode of transmission (A50-A64)
      • Congenital syphilis (A50)

Information for Medical Professionals

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code A50.31 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 124 - OTHER DISORDERS OF THE EYE WITH MCC
  • 125 - OTHER DISORDERS OF THE EYE WITHOUT MCC

Convert A50.31 to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 090.3 - Syphilitic keratitis (Approximate Flag)

Synonyms

The following clinical terms are approximate synonyms:

  • Keratitis due to syphilis
  • Syphilitic interstitial keratitis

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 A50.31 are found in the index:


Information for Patients


Corneal Disorders

Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.

Problems with the cornea include

  • Refractive errors
  • Allergies
  • Infections
  • Injuries
  • Dystrophies - conditions in which parts of the cornea lose clarity due to a buildup of cloudy material

Treatments of corneal disorders include medicines, corneal transplantation, and corneal laser surgery.

NIH: National Eye Institute

  • Cloudy cornea (Medical Encyclopedia)
  • Corneal injury (Medical Encyclopedia)
  • Corneal transplant (Medical Encyclopedia)
  • Corneal ulcers and infections (Medical Encyclopedia)
  • Fuchs dystrophy (Medical Encyclopedia)
  • Keratoconus (Medical Encyclopedia)

[Learn More]

Syphilis

Syphilis is a sexually transmitted disease caused by bacteria. It infects the genital area, lips, mouth, or anus of both men and women. You usually get syphilis from sexual contact with someone who has it. It can also pass from mother to baby during pregnancy.

The early stage of syphilis usually causes a single, small, painless sore. Sometimes it causes swelling in nearby lymph nodes. If you do not treat it, syphilis usually causes a non-itchy skin rash, often on your hands and feet. Many people do not notice symptoms for years. Symptoms can go away and come back.

The sores caused by syphilis make it easier to get or give someone HIV during sex. If you are pregnant, syphilis can cause complications, or you could lose your baby. In rare cases, syphilis causes serious health problems and even death.

Syphilis is easy to cure with antibiotics if you catch it early. Correct usage of latex condoms greatly reduces, but does not completely eliminate, the risk of catching or spreading syphilis. The most reliable way to avoid infection is to not have anal, vaginal, or oral sex.

Centers for Disease Control and Prevention

  • Condom Fact Sheet in Brief (Centers for Disease Control and Prevention)
  • Congenital syphilis (Medical Encyclopedia)
  • CSF-VDRL test (Medical Encyclopedia)
  • FTA-ABS test (Medical Encyclopedia)
  • Neurosyphilis (Medical Encyclopedia)
  • RPR test (Medical Encyclopedia)
  • Syphilis (Centers for Disease Control and Prevention)
  • Syphilis - primary (Medical Encyclopedia)
  • Syphilis and MSM (Men Who Have Sex with Men) (Centers for Disease Control and Prevention)
  • VDRL test (Medical Encyclopedia)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.