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M1A.0
Non-billable

Idiopathic chronic gout

Chapter 13: Diseases of the musculoskeletal system and connective tissue

Inclusion Terms

2 items
  • Chronic gouty bursitis
  • Primary chronic gout

Coding Guidance

M1A.0 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.

Referenced in Diagnoses

Conditions that use this ICD-10 code in their documentation

Additional Information from Parent Codes

The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.

Parent Codes Referenced:

Excludes1

1 item

From M1A:

  • gout NOS (M10.-)

Excludes2

11 items

From M00-M99:

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

From M1A:

  • acute gout (M10.-)

Use Additional Code

7 items

From M1A:

  • code to identify:
  • Autonomic neuropathy in diseases classified elsewhere (G99.0)
  • Calculus of urinary tract in diseases classified elsewhere (N22)
  • Cardiomyopathy in diseases classified elsewhere (I43)
  • Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-)
  • Disorders of iris and ciliary body in diseases classified elsewhere (H22)
  • Glomerular disorders in diseases classified elsewhere (N08)

Notes

1 item

From M00-M99:

  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

7th Character Notes

3 items

From M1A:

  • The appropriate 7th character is to be added to each code from category M1A
  • 0: without tophus (tophi)
  • 1: with tophus (tophi)
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