ICD-10-CM Code A51.1
Primary anal syphilis
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
A51.1 is a billable ICD code used to specify a diagnosis of primary anal syphilis. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code A51 is used to code Syphilis
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum. The signs and symptoms of syphilis vary depending in which of the four stages it presents (primary, secondary, latent, and tertiary). The primary stage classically presents with a single chancre (a firm, painless, non-itchy skin ulceration) but there may be multiple sores. In secondary syphilis a diffuse rash which frequently involves the palms of the hands and soles of the feet occurs. There may also be sores in the mouth or vagina. In latent syphilis there are little to no symptoms which can last for years. In tertiary syphilis there are gummas (soft non-cancerous growths), neurological, or heart symptoms. Syphilis has, however, been known as "the great imitator" as it may cause symptoms similar to many other diseases.
|MeSH Codes:||D013587, D013587, D013587, D013587, D013587, D013587, D013587, D013587|
|ICD 9 Codes:||90, 91, 92, 93, 94, 95, 96, 97|
Electron micrograph of Treponema pallidum
- DRG Group #393-395 - Other digestive system diagnoses with MCC.
- DRG Group #393-395 - Other digestive system diagnoses with CC.
- DRG Group #393-395 - Other digestive system diagnoses without CC or MCC.
Related Concepts SNOMET-CT
- Primary anal syphilis (disorder)
ICD-10-CM Alphabetical Index References for 'A51.1 - Primary anal syphilis'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code A51.1. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 091.1 was previously used, A51.1 is the appropriate modern ICD10 code.