HealthAssure
HealthAssureGood Life
ICD10BillableValid for clinical use

ICD-10 Code B97.33: Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere

B97.33 is a billable ICD-10 diagnosis code used to classify Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).

When is it used?

  • May be used when a clinician documents human t-cell lymphotrophic virus, type i [htlv-i] as the cause of diseases classified elsewhere in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
1Certain infectious and parasitic diseases (A00-B99)
block
B95-B97Bacterial and viral infectious agents
category
B97Viral agents as the cause of diseases classified elsewhere
category
B97.3Retrovirus as the cause of diseases classified elsewhere
currentB97.3

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Infectious Disease SpecialistGeneral Physician

Coding guidelines

Common synonyms

Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere

Frequently asked questions

Code details

CodeB97.33
SystemICD10
Display nameHuman T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere
ChapterCertain infectious and parasitic diseases (A00-B99)
BlockBacterial and viral infectious agents

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
HumanInfection, infected, infective(opportunistic)Infection, infected, infective(opportunistic)Infection, infected, infective(opportunistic)Retrovirus, as cause of disease classified elsewhere

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.