B81.3 Intestinal angiostrongyliasis

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Angiostrongyliasis due to:
• Angiostrongylus costaricensis
• Parastrongylus costaricensis

Applies from B81 Other intestinal helminthiases, not elsewhere classified

Excludes1 (never code together)

• angiostrongyliasis due to:
• Angiostrongylus cantonensis (B83.2)
• Parastrongylus cantonensis (B83.2)

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 127.7 Other specified intestinal helminthiasis (approximate)

Code annotations containing back-references to B81.3

Back-references to B81.3

• Type 2 Excludes: B83.2 Angiostrongyliasis due to Parastrongylus cantonensis ("intestinal angiostrongyliasis (B81.3)")

Back-references to B81

• Code First: H94.0 Acoustic neuritis in infectious and parasitic diseases classified elsewhere ("parasitic disease (B65-B89)")
• Type 2 Excludes: J82 Pulmonary eosinophilia, not elsewhere classified ("pulmonary eosinophilia due to specified parasitic infection (B50-B83)")

Diagnosis Index entries for B81.3

• Angiostrongyliasis › due to › Parastrongylus › costaricensis
• Angiostrongyliasis › intestinal
• Infection, infected, infective (opportunistic) › Parastrongylus › costaricensis
• Infestation › helminth › angiostrongyliasis › intestinal
• Infestation › helminth › intestinal › angiostrongyliasis
• Infestation › Parastrongylus › costaricensis

Nearby codes

• B81 Other intestinal helminthiases, not elsewhere classified
• B81.0 Anisakiasis
• B81.1 Intestinal capillariasis
• B81.2 Trichostrongyliasis
• B81.3 Intestinal angiostrongyliasis (this code)
• B81.4 Mixed intestinal helminthiases
• B81.8 Other specified intestinal helminthiases