B74.9 – Filariasis, unspecified
ICD-10-CM 2027 diagnosis code · Helminthiases
ICD-10-CM code
B74.9
- Code
B74.9(claims format:B749)- Description
- Filariasis, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B65-B83 Helminthiases
- Parent codes
- B74
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
B74 – Filariasis
Index terms for B74.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Mumu
- Orchitis, filarial
- Chylocele, filarial
- Chylothorax, filarial
- Infestation, filarial
- Epididymitis, filarial
- Arthritis, arthritic, chylous
- Conjunctivitis, in, filariasis
- Hydrothorax, chylous, filarial
- Conjunctivitis, due to, filariasis
- Infestation, filarial, conjunctiva
- Chylocele, tunica vaginalis, filarial
- Conjunctivitis, parasitic, filariasis
- Arthritis, arthritic, due to or associated with, filariasis NOS
Related codes in B74
- B74.0 – Filariasis due to Wuchereria bancroftiBillable
- B74.1 – Filariasis due to Brugia malayiBillable
- B74.2 – Filariasis due to Brugia timoriBillable
- B74.3 – LoiasisBillable
- B74.4 – MansonelliasisBillable
- B74.8 – Other filariasesBillable
Frequently asked questions
What is ICD-10 code B74.9?
B74.9 is the ICD-10-CM code for filariasis, unspecified, in the block B65-B83 (Helminthiases).
Is B74.9 a billable code?
Yes. B74.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B74.9 belong to?
It belongs to category B74 – Filariasis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.