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ICD-10 Coding for Left Finger Pain(M79.645)

Complete ICD-10-CM coding and documentation guide for Left Finger Pain. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Pain in Left FingerLeft Hand Finger Pain

Related ICD-10 Code Ranges

Complete code families applicable to Left Finger Pain

M79.64-M79.645Primary Range

Other specified soft tissue disorders, not elsewhere classified

This range includes codes for pain in specific fingers, with M79.645 being specific to the left finger(s).

Injuries to the wrist, hand and fingers

This range includes injury codes that may be relevant if the pain is due to trauma.

Key Information: ICD-10 code for left finger pain

Essential facts and insights about Left Finger Pain

The ICD-10 code for left finger pain is M79.645, used for pain localized to the left finger(s) without a confirmed cause.

Primary ICD-10-CM Code for left finger pain

Pain in left finger(s)
Billable Code

Decision Criteria

clinical Criteria

  • Pain localized to left finger(s) without confirmed etiology.

coding Criteria

  • Use M79.645 for left finger pain when no specific condition is diagnosed.

Applicable To

  • Localized pain in left finger(s)

Excludes

Clinical Validation Requirements

  • Documented localized pain in left finger(s)
  • Absence of confirmed etiology

Code-Specific Risks

  • Risk of using unspecified codes when laterality is known.

Coding Notes

  • Ensure laterality is specified and avoid unspecified codes.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Pain in hand joints

M25.54-
Use if arthritis is confirmed as the cause of pain.

Carpal tunnel syndrome

G56.0-
Use if nerve compression is identified.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Trigger finger

M65.3-
Presence of locking sensation and palpable nodule.

Tendinitis of hand/wrist

M70.0-
Confirmed inflammation of tendons in the hand/wrist.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Left Finger Pain to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code M79.645.

Impact

Clinical: Leads to inaccurate clinical records., Regulatory: May result in compliance issues., Financial: Can affect reimbursement rates.

Mitigation Strategy

Always document the specific finger and side.

Impact

Reimbursement: Incorrect coding can lead to reduced reimbursement., Compliance: May trigger audits due to lack of specificity., Data Quality: Affects the accuracy of clinical data.

Mitigation Strategy

Always specify laterality by using M79.645 for left finger pain.

Impact

Failure to document laterality can lead to audit findings.

Mitigation Strategy

Implement checks to ensure laterality is documented.

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 Left Finger Pain, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Left Finger Pain

Use these documentation templates to ensure complete and accurate documentation for Left Finger Pain. These templates include all required elements for proper coding and billing.

Primary Care Visit for Left Finger Pain

Specialty: Primary Care

Required Elements

  • Subjective pain description
  • Objective findings
  • Assessment and plan

Example Documentation

Subjective: 'Left middle finger pain x 2 weeks, worse with typing. Denies trauma.' Objective: Tender 3rd distal phalanx, no deformity. Grip strength: 4/5 left vs 5/5 right. X-ray: No fracture. Assessment: M79.645 (Pain in left finger). Plan: Splinting, NSAIDs.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Left finger pain reported.
Good Documentation Example
Sharp, throbbing pain localized to left index and middle fingers, exacerbated by gripping. No swelling or erythema. Negative Tinel’s sign. X-ray negative for fracture.
Explanation
The good example provides specific details about the pain, location, and negative findings, supporting the use of M79.645.

Need help with ICD-10 coding for Left Finger Pain? Ask your questions below.

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