A50.44

Late congenital syphilitic optic nerve atrophy

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 9 never code together

A50.4code

Excludes1

Hutchinson's triad (A50.53)A50.53

A50-A64block

Excludes1

nonspecific and nongonococcal urethritis (N34.1)N34.1
Reiter's disease (M02.3-)M02.3-

Excludes2

human immunodeficiency virus [HIV] disease (B20)B20

A00-B99chapter

Excludes1

certain localized infections - see body system-related chapters

Excludes2

carrier or suspected carrier of infectious disease (Z22.-)Z22.-
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
influenza and other acute respiratory infections (J00-J22)J00-J22

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 3

A50.4code

Use additional code

code to identify any associated mental disorder

A00-B99chapter

Includes

diseases generally recognized as communicable or transmissible

Use additional code

code to identify resistance to antimicrobial drugs (Z16.-)Z16.-

Index entries leading here 1

Atrophy, atrophic (of)
- nerve — see also Disorder, nerve
  - optic (papillomacular bundle)
    - syphilitic (late) A52.15
      - congenital A50.44
- optic (nerve) H47.20
  - syphilitic (late) A52.15
    - congenital A50.44

Alongside this code 6 same parent — A50.4

A50.40 Late congenital neurosyphilis, unspecified A50.41 Late congenital syphilitic meningitis A50.42 Late congenital syphilitic encephalitis A50.43 Late congenital syphilitic polyneuropathy A50.45 Juvenile general paresis A50.49 Other late congenital neurosyphilis

Medications 4

1 Optic Atrophy drugs 17 Optic Nerve Diseases drugs 2 Optic Nerve Hypoplasia drugs 1 Optic Atrophy, Hereditary, Leber drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: A50.4
Block: A50-A64
Siblings: 6

Present FY2024–FY2027.