A50.59 Other late congenital syphilis, symptomatic

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from A50.5 Other late congenital syphilis, symptomatic

Applicable to

• Any congenital syphilitic condition specified as late or manifest two years or more after birth.

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 090.5 Other late congenital syphilis, symptomatic (approximate)

Code annotations containing back-references to A50.59

Back-references to A50.59

• Code First: E35 Disorders of endocrine glands in diseases classified elsewhere ("late congenital syphilis of thymus gland [Dubois disease] (A50.59)")

Back-references to A50.5

• Code First: I52 Other heart disorders in diseases classified elsewhere ("congenital syphilis (A50.5)")
• Type 1 Excludes: K00.2 Abnormalities of size and form of teeth ("abnormalities of teeth due to congenital syphilis (A50.5)")
• Type 1 Excludes: K00.4 Disturbances in tooth formation ("Hutchinson's teeth and mulberry molars in congenital syphilis (A50.5)")
• Code First: K23 Disorders of esophagus in diseases classified elsewhere ("congenital syphilis (A50.5)")
• Code First: K77 Liver disorders in diseases classified elsewhere ("congenital syphilis (A50.0, A50.5)")
• Code First: M02 Postinfective and reactive arthropathies ("congenital syphilis [Clutton's joints] (A50.5)")
• Code First: N08 Glomerular disorders in diseases classified elsewhere ("congenital syphilis (A50.5)")
• Type 1 Excludes: Q67.4 Other congenital deformities of skull, face and jaw ("syphilitic saddle nose (A50.5)")

Back-references to A50

• Code First: J99 Respiratory disorders in diseases classified elsewhere ("congenital syphilis (A50.-)")
• Type 2 Excludes: N34 Urethritis and urethral syndrome ("urethritis in diseases with a predominantly sexual mode of transmission (A50-A64)")
• Type 2 Excludes: P37 Other congenital infectious and parasitic diseases ("congenital syphilis (A50.-)")

Diagnosis Index entries for A50.59

• Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › Dubois
• Disease, diseased › Dubois (thymus)
• Dubois' disease (thymus gland)
• Glomerulonephritis › in (due to) › syphilis (late) congenital
• Gumma (syphilitic) › congenital
• Hepatitis › syphilitic (late) › congenital (early) › late
• Laryngitis (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative) › syphilitic (late) › congenital
• Laryngotracheitis (acute) (Infectional) (infective) (viral) › syphilitic (late) › congenital
• Leontiasis › syphilitic (late) › congenital
• Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) › syphilitic (late) › congenital
• Perforation, perforated (nontraumatic) (of) › palatine vault › syphilitic › congenital
• Sarcocele (benign) › syphilitic › congenital
• Stenosis, stenotic (cicatricial) › esophagus › syphilitic › congenital
• Stenosis, stenotic (cicatricial) › larynx › syphilitic › congenital
• Stigmata congenital syphilis
• Stricture › esophagus › syphilitic › congenital
• Stricture › larynx › syphilitic › congenital
• Stricture › nostril (anterior) (posterior) › syphilitic › congenital
• Syphilis, syphilitic (acquired) › congenital › late, or 2 years or more after birth NEC › symptomatic or with manifestations NEC
• Syphilis, syphilitic (acquired) › gumma NEC › congenital
• Syphilis, syphilitic (acquired) › stigmata (congenital)
• Syphiloma › congenital

Nearby codes

• A50.53 Hutchinson's triad
• A50.54 Late congenital cardiovascular syphilis
• A50.55 Late congenital syphilitic arthropathy
• A50.56 Late congenital syphilitic osteochondropathy
• A50.57 Syphilitic saddle nose
• A50.59 Other late congenital syphilis, symptomatic (this code)
• A50.6 Late congenital syphilis, latent
• A50.7 Late congenital syphilis, unspecified
• A50.9 Congenital syphilis, unspecified