B85.4
BillableMixed pediculosis and phthiriasis
Mixed pediculosis and phthiriasis
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Related Codes(4)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(21)
SNOMED CT
UMLS
Clinical Terms
- Mixed pediculus infestation
- Phthiriosis
- Pediculosis and phthirus infections
- Infestation by Phthirus
- Infestation caused by Pediculus
- Phthiriasis
- Infestation classifiable to more than one of the categories B85.0-B85.3
- Infestation by Pediculus
- Pediculosis
- Infestation caused by Phthirus
Frequently Asked Questions
What is the ICD-10 code for mixed pediculosis and phthiriasis?
The ICD-10-CM code for mixed pediculosis and phthiriasis is B85.4. The full clinical description is "Mixed pediculosis and phthiriasis". B85.4 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code B85.4 mean?
ICD-10-CM code B85.4 represents “Mixed pediculosis and phthiriasis”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.
Is B85.4 a billable code?
Yes, B85.4 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is B85.4 in?
B85.4 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with B85.4?
B85.4 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters.
Are additional codes required with B85.4?
Yes, when using B85.4, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does B85.4 map to?
B85.4 maps to 4 SNOMED CT concepts: 20848007, 19690006, 187211004, 266166005. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for B85.4?
B85.4 is linked to 2 UMLS Concept Unique Identifiers: C2833787, C0494131. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does B85.4 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like mixed pediculosis and phthiriasis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of B85.4?
B85.4 maps to the ICD-11 code: 1G0Z (Infestation by unknown or unspecified ectoparasite).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.