Question 1

Is M1A a billable ICD-10 code?

Accepted Answer

No, M1A is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code M1A mean?

Accepted Answer

ICD-10-CM code M1A represents Chronic gout. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code M1A introduced?

Accepted Answer

Code M1A has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code M1A?

Accepted Answer

The parent category for M1A is section:M05-M14 (Inflammatory polyarthropathies (M05-M14)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions are excluded from M1A?

Accepted Answer

Code M1A has Type 1 Excludes (mutually exclusive conditions) including: gout NOS (M10.-). These conditions cannot be coded together with M1A as they represent different diagnoses.

Question 6

Should I use additional codes with M1A?

Accepted Answer

Yes, when coding M1A, consider adding codes for: code to identify:; Autonomic neuropathy in diseases classified elsewhere (G99.0). Additional codes provide more specificity about the patient's condition.

Question 7

Does M1A require a 7th character extension?

Accepted Answer

Yes, M1A requires a 7th character to specify the encounter type. Available extensions include: 0 (without tophus (tophi)), 1 (with tophus (tophi)). Use "X" as a placeholder to fill empty positions before the 7th character (e.g., M1AXXA for initial encounter). The extension indicates whether this is an initial visit, follow-up, or treatment for a late effect.

M1A2026

Excludes11Not coded together

Excludes211Not included here

Use Additional Code7Add code for detail

Notes1Additional information

Related Clinical Codes7Manifestation & etiology relationships