B00-B09
Medium Complexity
Viral infections characterized by skin and mucous membrane lesions
Primary Specialty: Dermatology
Last Updated: 2025-09-09
ICD-10 Codes (85)
85 billable0 category headers
B01Billable
B01.0Billable
B01.1Billable
B01.11Billable
B01.12Billable
B01.2Billable
B01.8Billable
B01.81Billable
B01.89Billable
B01.9Billable
B02Billable
B02.0Billable
B02.1Billable
B02.2Billable
B02.21Billable
B02.22Billable
B02.23Billable
B02.24Billable
B02.29Billable
B02.3Billable
B02.30Billable
B02.31Billable
B02.32Billable
B02.33Billable
B02.34Billable
B02.39Billable
B02.7Billable
B02.8Billable
B02.9Billable
B03Billable
B04Billable
B05Billable
B05.0Billable
B05.1Billable
B05.2Billable
B05.3Billable
B05.4Billable
B05.8Billable
B05.81Billable
B05.89Billable
B05.9Billable
B06Billable
B06.0Billable
B06.00Billable
B06.01Billable
B06.02Billable
B06.09Billable
B06.8Billable
B06.81Billable
B06.82Billable
B06.89Billable
B06.9Billable
B07Billable
B07.0Billable
B07.8Billable
B07.9Billable
B08Billable
B08.0Billable
B08.01Billable
B08.010Billable
B08.011Billable
B08.02Billable
B08.03Billable
B08.04Billable
B08.09Billable
B08.1Billable
B08.2Billable
B08.20Billable
B08.21Billable
B08.22Billable
B08.3Billable
B08.4Billable
B08.5Billable
B08.6Billable
B08.60Billable
B08.61Billable
B08.62Billable
B08.69Billable
B08.7Billable
B08.70Billable
B08.71Billable
B08.72Billable
B08.79Billable
B08.8Billable
B09Billable
Updates & Changes
FY 2026 Updates
Current Year
New Codes (1)
B08.62
Orf virus disease with complications
Revised Codes (2)
B00.9
Herpesviral infection, unspecified - updated to include HSV type specification when known
B08.5
Enteroviral vesicular pharyngitis - enhanced diagnostic specificity
Deleted Codes
No codes deleted in this range for FY 2026
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for B00-B09 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
high priority
The ICD-10 code range B00-B09 pertains to viral infections characterized by skin and mucous membrane lesions. This includes conditions such as herpesviral [herpes simplex] infections, zoster [herpes zoster], viral warts, molluscum contagiosum, and other viral infections with skin and mucous membrane lesions. The codes within this range are used to classify and document these conditions in medical records, aiding in patient management, epidemiological studies, and billing processes.
Key Usage Points:
- •B00-B09 codes are used for viral infections with skin and mucous membrane lesions.
- •Each specific condition has a unique code within this range.
- •The codes can be used for patient management, epidemiological studies, and billing.
- •It's crucial to document the specific type of infection for accurate coding.
- •The codes can be used in any healthcare setting where the patient is diagnosed with or treated for these conditions.
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with herpesviral [herpes simplex] infections.
- ✓When a patient is diagnosed with zoster [herpes zoster].
- ✓When a patient is diagnosed with viral warts.
- ✓When a patient is diagnosed with molluscum contagiosum.
- ✓When a patient is diagnosed with other viral infections with skin and mucous membrane lesions.
When NOT to Use:
- ✗When a patient has a bacterial skin infection.
- ✗When a patient has a fungal skin infection.
- ✗When a patient has a non-viral wart.
- ✗When a patient's condition is not characterized by skin or mucous membrane lesions.
- ✗When a patient's viral infection is not specified as a condition in this range.
Code Exclusions
Always verify exclusions using the latest ICD-10-CM official guidelines.
Documentation Requirements
For accurate coding within the B00-B09 range, detailed documentation of the patient's condition is essential. This includes the specific type of viral infection, the presence and extent of skin and mucous membrane lesions, and any related complications or comorbidities.
Clinical Information:
- •Specific type of viral infection.
- •Presence and extent of skin and mucous membrane lesions.
- •Related complications or comorbidities.
- •Treatment provided or planned.
- •Patient's response to treatment.
Supporting Evidence:
- •Lab results confirming the viral infection.
- •Clinical notes describing the lesions.
- •Imaging studies, if applicable.
- •Notes on patient's progress or response to treatment.
Good Documentation Example:
Patient diagnosed with herpes zoster, with extensive skin lesions on the right side of the chest. Responding well to antiviral therapy.
Poor Documentation Example:
Patient diagnosed with viral infection with skin lesions.
Common Documentation Errors:
- âš Not specifying the type of viral infection.
- âš Not documenting the extent of skin and mucous membrane lesions.
- âš Not noting related complications or comorbidities.
- âš Not documenting the patient's response to treatment.
Range Statistics
10
Total Codes
85
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:
Coding Complexity
Medium
Complexity Rating
Coding within the B00-B09 range is of medium complexity due to the variety of conditions included, the need for detailed documentation, and the potential for related complications or comorbidities. Coders must be specific in their coding and be prepared to adjust codes as the patient's condition changes.
Key Factors:
- â–¸Variety of conditions within the range.
- â–¸Need for detailed documentation.
- â–¸Potential for related complications or comorbidities.
- â–¸Need for specificity in coding.
- â–¸Potential for changes in patient's condition over time.
Specialty Focus
The B00-B09 range is particularly relevant for dermatologists, infectious disease specialists, and primary care physicians. These professionals often diagnose and manage patients with viral infections characterized by skin and mucous membrane lesions.
Primary Specialties:
Dermatology
40%
Infectious Disease
30%
Primary Care
30%
Clinical Scenarios:
- • A patient presenting with painful blisters on the chest, diagnosed with herpes zoster.
- • A child with multiple small, raised lesions on the skin, diagnosed with molluscum contagiosum.
- • A patient with a history of sexual contact presenting with genital lesions, diagnosed with herpes simplex.
- • A patient with a rough, raised skin lesion on the hand, diagnosed with a viral wart.
Resources & References
Numerous resources are available for understanding and applying the B00-B09 code range, including the ICD-10-CM official guidelines, clinical reference books, and educational materials from professional coding organizations.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- World Health Organization's ICD-10 online browser
- National Center for Health Statistics' ICD-10-CM webpage
Clinical References:
- Harrison's Principles of Internal Medicine
- Dermatology: 2-Volume Set by Bolognia, Schaffer, and Cerroni
Educational Materials:
- American Academy of Professional Coders (AAPC) resources
- American Health Information Management Association (AHIMA) resources
Frequently Asked Questions
Can B00-B09 codes be used for patients with suspected, but not confirmed, viral skin infections?
No, these codes should only be used when the viral infection is confirmed. For suspected but unconfirmed cases, use the appropriate code from the R00-R99 range (Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified).