ICD-10 B97.33
Billable / Specific CCHuman T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere
About ICD-10-CM B97.33
ICD-10-CM code B97.33 represents Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B97). The 2026 edition of ICD-10-CM B97.33 became effective on October 1, 2025.
Coding Tips for B97.33
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
B97.33 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inpatient DRG Impact, CC
codes Human T-cell lymphotrophic virus, type I [HTLV-I] as the cause of diseases classified elsewhere. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for B97.33
Local Coverage Determinations (LCDs) from CMS MACs that list B97.33 as a covered diagnosis.
Showing top 10 of 41 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing B97.33.
1 Cigna
3 Medicare
CPT Codes Commonly Billed with B97.33
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 86356 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 86357 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 86361 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 88189 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 88182 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 86367 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 88184 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 88188 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 86360 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
- 88187 CMS LCD: Billing and Coding: Lab: Flow Cytometry CMS LCD
Convert B97.33 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| B97.33 | 07951 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To B97.33
Other codes in section B95-B97 (Bacterial and viral infectious agents).
ICD-10 B97.33, Billing FAQ
Is ICD-10 code B97.33 billable? +
Yes, B97.33 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
Is B97.33 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with B97.33? +
Procedures frequently paired with B97.33 include: 86356, 86357, 86361, 88189, 88182.
What ICD-9 codes does B97.33 map to? +
Per CMS GEMs, B97.33 maps to ICD-9 codes: 07951. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team