ICD10BillableValid for clinical use
ICD-10 Code B88.9: Infestation, unspecified
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).
When is it used?
- May be used when a clinician documents infestation, unspecified in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
1Certain infectious and parasitic diseases (A00-B99)
block
B85-B89Pediculosis, acariasis and other infestations
category
B88Other infestations
currentB88
Official coding notes
Inclusion terms
- Infestation (skin) NOS
- Infestation by mites NOS
- Skin parasites NOS
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Infectious Disease SpecialistGeneral Physician
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 402139000high
Dermatosis caused by parasite
Source: SNOMED International ICD-10 map
SNOMED_CT 402155007high
Dermatosis caused by parasitic mammalian mite
Source: SNOMED International ICD-10 map
SNOMED_CT 402158009high
Dermatosis due to mite infestation of stored product
Source: SNOMED International ICD-10 map
SNOMED_CT 442027008high
Inflammation of skin due to parasite
Source: SNOMED International ICD-10 map
SNOMED_CT 128938009high
Parasitic infection of skin
Source: SNOMED International ICD-10 map
SNOMED_CT 33042004high
Parasitic skin infestation
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
B88.9
Common synonyms
Infestation, unspecifiedInfestation
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.