B89
Unspecified parasitic disease
BillableComplete code, valid to report
B89 is a billable ICD-10-CM diagnosis code for unspecified parasitic disease. It is part of the FY2027 code set, effective October 1, 2026. The Alphabetic Index lists it under 23 entries. Its coding notes include a Use additional code instruction and 5 Excludes2 entries.
Use additional code
Add the listed code as a secondary code, if known.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (5 notes)
Inherited from Chapter 1 Certain infectious and parasitic diseases
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Includes
Further defines or gives examples of the content of the category.
Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
- diseases generally recognized as communicable or transmissible
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 23 entries
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute), due to or associated with, parasitic disease NEC
- Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute), in (due to), parasitic disease NEC
- Cyst (colloid) (mucous) (simple) (retention), parasitic
- Disease, diseased, parasitic
- Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute), in (due to), parasitic disease NEC
- Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent), in (due to), infectious disease NEC
- Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent), in (due to), parasitic disease
- Infection, infected, infective (opportunistic), parasitic
- Infestation, eyelid, parasitic NOS
- Infestation, orbit, parasitic NOS
- Infestation, parasite, parasitic
- Infestation, parasite, parasitic, eyelid
Show 11 more
- Iridocyclitis, in (due to), parasitic disease NOS
- Mastoiditis (coalescent) (hemorrhagic) (suppurative), in (due to), parasitic disease NEC
- Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic), in (due to), parasitic disease NEC
- Meningoencephalitis, parasitic NEC
- Myopathy, in (due to), parasitic disease NEC
- Neuritis (rheumatoid), acoustic (nerve), in (due to), parasitic disease NEC
- Otitis (acute), externa, in (due to), parasitic disease NEC
- Palsy, cranial nerve, multiple, in, parasitic disease
- Parasitic, disease NEC
- Parasitism
- Polyneuropathy (peripheral), in (due to), parasitic disease NEC