2026 ICD-10-CM Diagnosis Code A52.17General paresis

ICD-10-CM CodesA00–B99A50-A64A52

ICD-10-CM A52.17
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A52.17 is a billable ICD-10-CM diagnosis code for general paresis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as chronic infectious disease of central nervous system. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified CNS infection and poliomyelitis and Sexually transmitted infections (excluding HIV and hepatitis).

Code Identity

ICD-10-CM Code
A52.17
Billable Status
Yes — Valid for Submission
Code Describes
General paresis
Short Description
General paresis
Same as the full description in the CMS dataset.
Parent Code
Symptomatic neurosyphilis

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA50-A64Infections with a predominantly sexual mode of transmission
CategoryA52Late syphilis
This CodeA52.17General paresis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chronic infectious disease of central nervous system
  • Dementia associated with neurosyphilis
  • General paresis - neurosyphilis
  • Late quaternary neurosyphilis
  • Spastic spinal syphilitic paralysis
  • Tabetic neurosyphilis
  • Taboparesis

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Dementia paralytica

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Bayle's disease(general paresis)
    • Convulsions(idiopathic)
      • paretic
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • in (due to)
        • neurosyphilis
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • in (due to)
        • neurosyphilis
          • with behavioral disturbance
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • paralytica, paralytic (syphilitic)
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • paralytica, paralytic (syphilitic)
        • with behavioral disturbance
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • paretic
    • Dementia(degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)
      • progressive, syphilitic
    • Encephalopathy(acute)
      • in (due to) (with)
        • syphilis
    • Erb's
      • palsy, paralysis (brachial) (birth) (newborn)
        • spinal (spastic) syphilitic
    • Lissauer's paralysis
    • Neurosyphilis(arrested) (early) (gumma) (late) (latent) (recurrent) (relapse)
      • general paresis
    • Neurosyphilis(arrested) (early) (gumma) (late) (latent) (recurrent) (relapse)
      • paresis, paretic
    • Neurosyphilis(arrested) (early) (gumma) (late) (latent) (recurrent) (relapse)
      • taboparesis (taboparetic)
    • Paralysis, paralytic(complete) (incomplete)
      • with
        • syphilis
    • Paralysis, paralytic(complete) (incomplete)
      • ataxic (hereditary)
        • general (syphilitic)
    • Paralysis, paralytic(complete) (incomplete)
      • dementia
    • Paralysis, paralytic(complete) (incomplete)
      • Erb's syphilitic spastic spinal
    • Paralysis, paralytic(complete) (incomplete)
      • general (progressive) (syphilitic)
    • Paralysis, paralytic(complete) (incomplete)
      • Lissauer's
    • Paralysis, paralytic(complete) (incomplete)
      • progressive (atrophic) (bulbar) (spinal)
        • general
    • Paralysis, paralytic(complete) (incomplete)
      • spastic
        • syphilitic (spinal)
    • Paralysis, paralytic(complete) (incomplete)
      • spinal (cord)
        • atrophic (acute)
          • spastic, syphilitic
    • Paralysis, paralytic(complete) (incomplete)
      • syphilitic spastic spinal (Erb's)
    • Paraplegia(lower)
      • spastic
        • Erb's spinal, syphilitic
    • Paraplegia(lower)
      • syphilitic (spastic)
    • Paresis
      • bladder (sphincter)
        • tabetic
    • Paresis
      • general (progressive) (syphilitic)
    • Paresis
      • insane (syphilitic)
    • Paresis
      • syphilitic (general)
    • Syphilis, syphilitic(acquired)
      • brain
    • Syphilis, syphilitic(acquired)
      • central nervous system (late) (recurrent) (relapse) (tertiary)
        • with
          • general paralysis
    • Syphilis, syphilitic(acquired)
      • central nervous system (late) (recurrent) (relapse) (tertiary)
        • with
          • paresis (general)
    • Syphilis, syphilitic(acquired)
      • central nervous system (late) (recurrent) (relapse) (tertiary)
        • with
          • taboparesis
    • Syphilis, syphilitic(acquired)
      • cerebral
    • Syphilis, syphilitic(acquired)
      • cerebral
        • sclerosis
    • Syphilis, syphilitic(acquired)
      • dementia paralytica
    • Syphilis, syphilitic(acquired)
      • general
        • paralysis
    • Syphilis, syphilitic(acquired)
      • hemiparesis
    • Syphilis, syphilitic(acquired)
      • hemiplegia
    • Syphilis, syphilitic(acquired)
      • late
        • paresis
    • Syphilis, syphilitic(acquired)
      • Lissauer's paralysis
    • Syphilis, syphilitic(acquired)
      • monoplegia
    • Syphilis, syphilitic(acquired)
      • paralysis
    • Syphilis, syphilitic(acquired)
      • paralysis
        • general
    • Syphilis, syphilitic(acquired)
      • paresis (general)
    • Syphilis, syphilitic(acquired)
      • pontine lesion
    • Syphilis, syphilitic(acquired)
      • sclerosis
        • cerebral
    • Syphilis, syphilitic(acquired)
      • spastic spinal paralysis
    • Syphilis, syphilitic(acquired)
      • taboparesis
    • Tabes, tabetic
      • with
        • paralysis, general
    • Tabes, tabetic
      • with
        • paresis (general)
    • Tabes, tabetic
      • paralysis, insane, general
    • Tabes, tabetic
      • spasmodic
    • Taboparalysis
    • Taboparesis(remission)
    • Tumor
      • syphilitic, brain

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NVS003
Other specified CNS infection and poliomyelitis
Default principal diagnosis: inpatient No · outpatient No
CCSR INF010
Sexually transmitted infections (excluding HIV and hepatitis)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Dementia

Dementia is a loss of mental functions that is severe enough to affect your daily life and activities. These functions include:

The full article covers:

  • What is dementia?
  • What are the types of dementia?
  • Who is at risk for dementia?
  • What are the symptoms of dementia?
  • How is dementia diagnosed?
  • What are the treatments for dementia?
  • Can dementia be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert A52.17 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
094.1 General paresis
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About A52.17Overview

Is A52.17 (Symptomatic neurosyphilis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report general paresis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of A52.17?

Under the General Equivalence Mappings, general paresis converts to ICD-9-CM 094.1 (general paresis). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.