M1A.0710 Idiopathic chronic gout, right ankle and foot, without tophus (tophi)

ICD-10-CM Diagnosis Code M1A.0710: Idiopathic chronic gout, right ankle and foot, without tophus (tophi)

ICD-10-CM code M1A.0710 identifies idiopathic chronic gout affecting the right ankle and foot without tophus (tophi). The concept is an active terminology record classified as a Disease or Syndrome. It appears in federal billing and coding articles, though inclusion does not guarantee payer coverage. 1 3 5

Plain-language overview

Code M1A.0710 designates a Disease or Syndrome concept for idiopathic chronic gout localized to the right ankle and foot, explicitly indicating the absence of tophus or tophi. 1 5

What this code represents

The official preferred name for M1A.0710 is idiopathic chronic gout, right ankle and foot, without tophus (tophi), and the terminology record holds an active status. 1

M1A.0710 is a narrower concept under the parent code M1A.071, which represents idiopathic chronic gout of the right ankle and foot generally, distinguishing the specific condition by the absence of tophi. 1

Coding details

The terminology record for M1A.0710 includes an abbreviation noting it represents idiopathic chronic gout, right ankle and foot, without tophus, and confirms the code itself has narrower subordinate concepts. 1

Documentation considerations

The terminology record specifies the exact clinical descriptors of idiopathic chronic gout, right ankle and foot location, and without tophus, which form the structural basis for this diagnostic code. 1

Clinical context

Validated classification criteria for gout encompass both acute and chronic aspects, where the documented presence of monosodium urate crystals in a symptomatic joint or tophus is sufficient for classifying the condition. 2

Coverage and utilization context

The code M1A.0710 appears in federal billing and coding articles concerning pharmacogenomics and pharmacogenomic testing, though its appearance does not establish that the service is covered. 3 4

What the sources add

While the terminology record defines the code's structural hierarchy and disease classification, the billing articles demonstrate its operational appearance in federal healthcare coding documents for testing contexts. 1 3 4

The clinical literature establishes that chronic gout classification involves validated criteria integrating acute and chronic disease characteristics, whereas the terminology record strictly defines the diagnostic code without clinical guidelines. 1 2

Sources

1. ICD-10-CM M1A.0710 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Recent advances in understanding and managing gout — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Pharmacogenomics Testing (A58812) — cms.gov; accessed 2026-07-27.
4. Article - Billing and Coding: Pharmacogenomic Testing (A59915) — cms.gov; accessed 2026-07-27.
5. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.