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A64
ICD-10-CM
Sexually Transmitted Infections

Find comprehensive information on sexually transmitted infection (STI) diagnosis, including clinical documentation, medical coding, and healthcare guidelines. Learn about common STI codes, diagnostic criteria, and best practices for accurate STI documentation and reporting. This resource covers essential information for healthcare professionals on managing and documenting STIs in a clinical setting, including relevant ICD-10 codes, SNOMED CT concepts, and other medical terminology. Improve your STI clinical documentation and coding accuracy for optimal patient care and reimbursement.

Also known as

STIs
Sexually Transmitted Diseases
STDs

Diagnosis Snapshot

Key Facts
  • Definition : Infections spread through sexual contact. Bacteria, viruses, or parasites can be the cause.
  • Clinical Signs : Symptoms vary widely, from none to painful urination, discharge, sores, or pelvic pain.
  • Common Settings : Diagnosed in sexual health clinics, primary care offices, and urgent care centers.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC A64 Coding
A50-A64

Syphilis and other treponematoses

Covers various stages of syphilis and other related infections.

A65-A69

Gonococcal infection

Includes infections caused by Neisseria gonorrhoeae bacteria.

A70-A74

Chlamydial infections

Encompasses infections caused by Chlamydia trachomatis.

B00-B09

Viral infections characterized by skin lesions

Includes some STIs like herpes simplex and human papillomavirus.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the STI caused by Chlamydia?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Chlamydia infection
Gonorrhea infection
Syphilis infection

Documentation Best Practices

Documentation Checklist
  • STI diagnosis documentation: ICD-10 code, symptoms, date of onset
  • Document patient history, physical exam, and test results
  • STI diagnosis: Include specific organism if identified
  • Treatment plan for STI documented, including medication details
  • Patient education and counseling on STIs and safe sex practices

Coding and Audit Risks

Common Risks
  • Unspecified STI Codes

    Using unspecified STI codes (e.g., A60.9) when a more specific diagnosis is documented leads to inaccurate data and lost revenue.

  • HIV Coding Errors

    Incorrect sequencing of HIV codes with opportunistic infections or other related conditions impacts quality reporting and reimbursement.

  • Chlamydia/Gonorrhea Documentation

    Insufficient documentation to distinguish between chlamydia and gonorrhea infections can cause coding and billing errors.

Mitigation Tips

Best Practices
  • ICD-10-CM Z11.3, STI screening, improves diagnosis coding.
  • Specific STI testing names in notes aid CDI, boost compliance.
  • Document patient sexual history, risk factors for accurate codes.
  • Consistent STI terminology (e.g., chlamydia) across EHR enhances data.
  • Regular CDI reviews of STI documentation ensure coding accuracy.

Clinical Decision Support

Checklist
  • 1. Verify exposure risk: sexual history, partners
  • 2. Confirm symptoms: discharge, lesions, pain
  • 3. Order appropriate tests: cultures, PCR
  • 4. Document findings: ICD-10, SNOMED CT codes
  • 5. Review patient education: safe sex, treatment

Reimbursement and Quality Metrics

Impact Summary
  • Sexually Transmitted Infections reimbursement hinges on accurate ICD-10 diagnosis codes (A50-A64, B07, R87.8) for optimal payer payments. Proper coding impacts revenue cycle management and reduces claim denials.
  • Quality metrics for STI care focus on timely testing, treatment, and partner notification. Accurate coding supports public health reporting and performance measurement.
  • STI diagnosis coding impacts hospital infection control reporting, contributing to national surveillance data for public health initiatives and resource allocation.
  • Precise STI coding facilitates data analysis for quality improvement programs, enabling hospitals to assess treatment effectiveness and patient outcomes.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes. Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code STI confirmed diagnoses
  • Document symptoms, testing
  • Use ICD-10-CM Z11 codes for encounter screening
  • Distinguish infection stage
  • Include site, laterality for accurate coding

Documentation Templates

Patient presents with concerns regarding a possible sexually transmitted infection (STI).  Chief complaint includes [specific symptom(s) e.g., dysuria, genital discharge, pelvic pain, genital lesions, etc.].  Patient reports [sexual history details relevant to STI risk assessment, e.g., new partner, unprotected sex, multiple partners, specific sexual practices].  Review of systems includes [relevant positive and negative findings].  Physical examination reveals [objective findings, e.g., erythema, edema, ulcerations, discharge characteristics, location and description of lesions, inguinal lymphadenopathy].  Based on patient presentation and examination findings, the differential diagnosis includes [list potential STIs, e.g., chlamydia, gonorrhea, syphilis, herpes simplex virus, trichomoniasis, human papillomavirus].  Laboratory testing ordered for [specific tests, e.g., nucleic acid amplification test (NAAT) for chlamydia and gonorrhea, syphilis serology, herpes simplex virus culture or PCR, wet mount microscopy for trichomoniasis, HPV DNA test if indicated].  Patient education provided regarding safe sex practices, partner notification, and the importance of treatment adherence.  Patient counseled on potential complications of untreated STIs, including pelvic inflammatory disease, infertility, and increased risk of HIV transmission.  Preliminary diagnosis of [likely STI based on presenting symptoms and exam] pending laboratory confirmation.  Treatment initiated with [medication prescribed and dosage] as per current Centers for Disease Control and Prevention (CDC) guidelines.  Follow-up appointment scheduled for [date] to review test results and discuss further management, including partner treatment if indicated.  ICD-10 code[s] [relevant codes based on suspected STI] assigned.  Medical billing codes for services rendered include [relevant CPT codes].