ICD-10-CM 2026 · Effective October 1, 2025

ICD-10 B52.0

Billable / Specific CC

Plasmodium malariae malaria with nephropathy

B52
Block
0
Synonyms
3
LCDs
2
Payer Policies
3
Linked CPTs

About ICD-10-CM B52.0

ICD-10-CM code B52.0 represents Plasmodium malariae malaria with nephropathy. This is a billable/specific code in the Infectious and Parasitic Diseases chapter (block B52). The 2026 edition of ICD-10-CM B52.0 became effective on October 1, 2025.

Coding Tips for B52.0

Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.

Inpatient DRG impact: CC

B52.0 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.

Medicare Advantage HCC Impact

ESRD-HCC
Category 141

Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.

Inpatient DRG Impact, CC

codes Plasmodium malariae malaria with nephropathy. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.

Medicare LCD Coverage for B52.0

Local Coverage Determinations (LCDs) from CMS MACs that list B52.0 as a covered diagnosis.

3 LCDs

Showing top 3. Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Retroperitoneal Ultrasound
Article ID: 55336, Effective: 2025-10-01 00:00:00, 797 covered, 0 non-covered
CPT 76775 →
CMS LCD: Billing and Coding: Retroperitoneal Ultrasound
Article ID: 55336, Effective: 2025-10-01 00:00:00, 797 covered, 0 non-covered
CPT 76770 →
CMS LCD: Billing and Coding: Retroperitoneal Ultrasound
Article ID: 55336, Effective: 2025-10-01 00:00:00, 797 covered, 0 non-covered
CPT 76776 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing B52.0.

2 policies

1 Cigna

Neuropsychological Testing - (EN0258)
Policy ID: EN_MM_0258

1 Medicare

Billing and Coding: Retroperitoneal Ultrasound
Policy ID: ART-55336

CPT Codes Commonly Billed with B52.0

Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.

3 linkages
  • 76770 CMS LCD: Billing and Coding: Retroperitoneal Ultrasound CMS LCD
  • 76776 CMS LCD: Billing and Coding: Retroperitoneal Ultrasound CMS LCD
  • 76775 CMS LCD: Billing and Coding: Retroperitoneal Ultrasound CMS LCD

Convert B52.0 to ICD-9-CM

Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.

ICD-10ICD-9Mapping Flags
B52.0 0849 10111
B52.0 58181 10112

Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).

ICD-10 B52.0, Billing FAQ

Is ICD-10 code B52.0 billable? +

Yes, B52.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

Is B52.0 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 B52.0? +

Procedures frequently paired with B52.0 include: 76770, 76776, 76775.

What ICD-9 codes does B52.0 map to? +

Per CMS GEMs, B52.0 maps to ICD-9 codes: 0849, 58181. Useful for legacy data review and historical claim analysis.

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Reviewed by the PayerReady Medical Coding Team

Verified against the CMS 2026 code set on June 1, 2026.

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