M06.4
Billable

Inflammatory polyarthropathy

Billable / Specific Code

What is Inflammatory polyarthropathy?

ICD-10-CM M06.4 is the diagnosis code for Inflammatory polyarthropathy. This code falls under the section "Inflammatory polyarthropathies" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1

Coding Guidelines for M06.4

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as M06.4. They are mutually exclusive:

  • polyarthritis NOS (M13.0)

ICD-10-CM Code Hierarchy

Understanding where M06.4 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is M06.4 a billable ICD-10-CM code?

Yes, M06.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does M06.4 mean?

M06.4 is the ICD-10-CM diagnosis code for "Inflammatory polyarthropathy". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of M06.4?

The parent code of M06.4 is M06 ("Other rheumatoid arthritis"). M06.4 provides a more specific classification within this category.

What section is M06.4 in?

M06.4 is located in Section M05-M14 — "Inflammatory polyarthropathies" within Chapter 13 of the ICD-10-CM Tabular List.

When should I use M06.4?

Use M06.4 when the patients documented diagnosis matches "Inflammatory polyarthropathy" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Inflammatory polyarthropathy?

The ICD-10-CM code for Inflammatory polyarthropathy is M06.4.

Can M06.4 be used for primary diagnosis?

Yes, M06.4 can be used as a primary diagnosis code since it is billable and specific.

What chapter is M06.4 in?

M06.4 is in Chapter 13 of the ICD-10-CM Tabular List.

What conditions are excluded from M06.4?

Type 1 Excludes for M06.4 include: polyarthritis NOS (M13.0).

Is M06.4 valid for 2026?

Yes, M06.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM06.39Rheumatoid nodule, multiple sitesNext →M06.8Other specified rheumatoid arthritis
Code Details
M06.4
Inflammatory polyarthropathy
Billable / Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M05-M14 — Inflammatory polyarthropathies
2026 ICD-10-CM