ICD-10 Coding for Blister(S90.821A, S30.824A)
Complete ICD-10-CM coding and documentation guide for Blister. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Blister
Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
Includes codes for blisters in the genital area, such as S30.824A for vaginal/vulvar blisters.
S90-S99Primary Range
Injuries to the ankle and foot
Primary range for coding blisters on the foot, such as S90.821A for right foot blisters.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| S90.821A | Blister (nonthermal) of right foot, initial encounter | Use when documenting a nonthermal blister on the right foot during the initial encounter. |
|
| S30.824A | Blister (nonthermal) of vagina and vulva, initial encounter | Use when documenting a nonthermal blister in the vaginal or vulvar area during the initial encounter. |
|
Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information: ICD-10 code for blister
Essential facts and insights about Blister
Primary ICD-10-CM Codes for blister
Decision Criteria
clinical Criteria
- Presence of a nonthermal blister on the right foot
Applicable To
- Blister of right foot
Excludes
- Thermal blisters
Clinical Validation Requirements
- Right foot location specified
- Documentation of 'initial encounter'
- Exclusion of thermal causes
Code-Specific Risks
- Omission of laterality
- Incorrect sequencing with diabetes codes
Coding Notes
- Ensure laterality is documented and nonthermal cause is confirmed.
S30.824A - Blister (nonthermal) of vagina and vulva, initial encounter
Use when documenting a nonthermal blister in the vaginal or vulvar area during the initial encounter.
Applicable To
- Blister of vagina
- Blister of vulva
Excludes
- Thermal blisters
Clinical Validation Requirements
- Vulvar/vaginal involvement confirmed
- Non-traumatic mechanism stated
Coding Notes
Ensure anatomical specificity and encounter type are documented.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Blister to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code S90.821A.
Impact
Clinical: Leads to inaccurate clinical records., Regulatory: Increases risk of audit failures., Financial: Potential for denied claims.
Mitigation Strategy
Use templates to ensure consistency., Regularly review documentation for accuracy.
Impact
Reimbursement: May lead to reduced reimbursement due to unspecified coding., Compliance: Non-compliance with ICD-10 coding standards., Data Quality: Decreases the accuracy of patient records.
Mitigation Strategy
Always document the laterality of the blister (right, left, bilateral).
Impact
Use of unspecified codes can trigger audits.
Mitigation Strategy
Always document specific details such as laterality and cause.
Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
Frequently Asked Questions
Common questions about ICD-10 coding for Blister, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Blister
Use these documentation templates to ensure complete and accurate documentation for Blister. These templates include all required elements for proper coding and billing.
Podiatry Progress Note
Specialty: PodiatryRequired Elements
- Location
- Size
- Etiology
- Associated Factors
- Treatment
- Plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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