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ICD-10 Coding for Left Hand Pain(M79.642)

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

Also known as:

Pain in Left HandLeft Hand Discomfort

Related ICD-10 Code Ranges

Complete code families applicable to Left Hand Pain

M79.6Primary Range

Pain in limb

This range includes codes for pain in specific limbs, including the hand.

Pain, not elsewhere classified

This range is used for coding pain that is acute or chronic, often used when pain management is the primary focus.

Key Information: ICD-10 code for left hand pain

Essential facts and insights about Left Hand Pain

The ICD-10 code for left hand pain is M79.642, used for unspecified pain in the left hand.

Primary ICD-10-CM Code for left hand pain

Pain in left hand
Billable Code

Decision Criteria

clinical Criteria

  • Pain is localized to the left hand without a specific diagnosis.

documentation Criteria

  • Laterality and specific location of pain are documented.

Applicable To

  • Localized pain in left hand
  • Idiopathic pain in left hand

Excludes

Clinical Validation Requirements

  • Documentation of pain location and laterality
  • Physical exam findings such as tenderness or swelling

Code-Specific Risks

  • Risk of using unspecified codes if laterality is not documented

Coding Notes

  • Ensure documentation specifies laterality to avoid unspecified coding.

Ancillary Codes

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

Acute pain due to trauma

G89.11
Use when acute pain management is the primary focus of the encounter.

Differential Codes

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

Pain in left finger(s)

M79.645
Use for pain isolated to the fingers rather than the entire hand.

Carpal tunnel syndrome, left hand

G56.22
Use when nerve involvement is confirmed, such as through EMG studies.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Left Hand Pain to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code M79.642.

Impact

Clinical: May lead to incorrect treatment plans., Regulatory: Non-compliance with coding standards., Financial: Potential for claim denials.

Mitigation Strategy

Always document the affected side in clinical notes.

Impact

Reimbursement: May lead to claim denials or reduced reimbursement., Compliance: Non-compliance with ICD-10 coding guidelines., Data Quality: Decreases accuracy of health records.

Mitigation Strategy

Always use the specific code for left hand (M79.642) when laterality is known.

Impact

Failure to document laterality can lead to audit findings.

Mitigation Strategy

Implement checks to ensure laterality is always 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 Hand Pain, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Left Hand Pain

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

Orthopedic evaluation of left hand pain

Specialty: Orthopedics

Required Elements

  • Patient history
  • Physical exam findings
  • Pain severity
  • Functional limitations

Example Documentation

Patient presents with sharp pain in left hand, rated 6/10, worsens with grip.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has hand pain.
Good Documentation Example
Patient reports sharp, constant pain in left palmar surface, radiating to 2nd-3rd digits, worse with grip.
Explanation
The good example provides specific location, severity, and characteristics of the pain.

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

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