Late syphilis
In Infections with a predominantly sexual mode of transmission (A50-A64), chapter 1: Certain Infectious and Parasitic Diseases
30 billable codes under A52: 2 are an MCC, 26 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Also applies, from Infections with a predominantly sexual mode of transmission (A50-A64)
These notes sit on A50-A64 and apply to every code under it, including A52.
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Rules for coding infections and parasitic diseases, including HIV, organism and drug resistance codes, sepsis and septic shock, MRSA, Zika, and COVID-19.
- Human Immunodeficiency Virus (HIV) Infections (page 19)
- Infectious agents as the cause of diseases classified to other chapters (page 22)
- Infections resistant to antibiotics (page 22)
- Sepsis, Severe Sepsis, and Septic Shock (page 23)
- Methicillin Resistant Staphylococcus aureus (MRSA) Conditions (page 27)
- Zika virus infections (page 28)
- Coronavirus infections (page 28)
All codes under A52
A52 can't be used on a claim. Pick a billable code below; grey headings group them.
- A52.0Cardiovascular and cerebrovascular syphilis
- A52.00Cardiovascular syphilis, unspecified
- A52.01Syphilitic aneurysm of aorta
- A52.02Syphilitic aortitis
- A52.03Syphilitic endocarditis
- A52.04Syphilitic cerebral arteritis
- A52.05Other cerebrovascular syphilis
- A52.06Other syphilitic heart involvement
- A52.09Other cardiovascular syphilis
- A52.1Symptomatic neurosyphilis
- A52.10Symptomatic neurosyphilis, unspecified
- A52.11Tabes dorsalis
- A52.12Other cerebrospinal syphilis
- A52.13Late syphilitic meningitis
- A52.14Late syphilitic encephalitis
- A52.15Late syphilitic neuropathy
- A52.16Charcot's arthropathy (tabetic)
- A52.17General paresis
- A52.19Other symptomatic neurosyphilis
- A52.2Asymptomatic neurosyphilis
- A52.3Neurosyphilis, unspecified
- A52.7Other symptomatic late syphilis
- A52.71Late syphilitic oculopathy
- A52.72Syphilis of lung and bronchus
- A52.73Symptomatic late syphilis of other respiratory organs
- A52.74Syphilis of liver and other viscera
- A52.75Syphilis of kidney and ureter
- A52.76Other genitourinary symptomatic late syphilis
- A52.77Syphilis of bone and joint
- A52.78Syphilis of other musculoskeletal tissue
- A52.79Other symptomatic late syphilis
- A52.8Late syphilis, latent
- A52.9Late syphilis, unspecified
A52 MS-DRGs
As the principal diagnosis, the billable codes under A52 group to these 30 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 056 Degenerative Nervous System Disorders with MCC (8 of 30 codes)
- DRG 057 Degenerative Nervous System Disorders without MCC (8 of 30 codes)
- DRG 314 Other Circulatory System Diagnoses with MCC (5 of 30 codes)
- DRG 315 Other Circulatory System Diagnoses with CC (5 of 30 codes)
- DRG 316 Other Circulatory System Diagnoses without CC/MCC (5 of 30 codes)
- DRG 867 Other Infectious and Parasitic Diseases Diagnoses with MCC (5 of 30 codes)
- DRG 868 Other Infectious and Parasitic Diseases Diagnoses with CC (5 of 30 codes)
- DRG 869 Other Infectious and Parasitic Diseases Diagnoses without CC/MCC (5 of 30 codes)
- DRG 097 Non-Bacterial Infection of Nervous System Except Viral Meningitis with MCC (3 of 30 codes)
- DRG 098 Non-Bacterial Infection of Nervous System Except Viral Meningitis with CC (3 of 30 codes)
- DRG 099 Non-Bacterial Infection of Nervous System Except Viral Meningitis without CC/MCC (3 of 30 codes)
- DRG 023 Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator (2 of 30 codes)
- DRG 024 Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC (2 of 30 codes)
- DRG 306 Cardiac Congenital and Valvular Disorders with MCC (2 of 30 codes)
- DRG 307 Cardiac Congenital and Valvular Disorders without MCC (2 of 30 codes)
- DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (1 of 30 codes)
- DRG 125 Other Disorders of the Eye without MCC (1 of 30 codes)
- DRG 177 Respiratory Infections and Inflammations with MCC (1 of 30 codes)
- DRG 178 Respiratory Infections and Inflammations with CC (1 of 30 codes)
- DRG 179 Respiratory Infections and Inflammations without CC/MCC (1 of 30 codes)
- DRG 288 Acute and Subacute Endocarditis with MCC (1 of 30 codes)
- DRG 289 Acute and Subacute Endocarditis with CC (1 of 30 codes)
- DRG 290 Acute and Subacute Endocarditis without CC/MCC (1 of 30 codes)
- DRG 441 Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC (1 of 30 codes)
- DRG 442 Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC (1 of 30 codes)
- DRG 443 Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC (1 of 30 codes)
- DRG 539 Osteomyelitis with MCC (1 of 30 codes)
- DRG 540 Osteomyelitis with CC (1 of 30 codes)
- DRG 541 Osteomyelitis without CC/MCC (1 of 30 codes)
- DRG 557 Tendonitis, Myositis and Bursitis with MCC (1 of 30 codes)
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Syphilis
Syphilis is a sexually transmitted infection (STI) 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.
Read more about syphilis on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.