ICD-10-CM 2027
ICD-10 code for Calcinosis
From the official ICD-10-CM alphabetic index entry “Calcinosis (interstitial) (tumoral) (universalis)”. Page updated September 29, 2026.
About coding Calcinosis
The ICD-10-CM code for Calcinosis is E83.59 (Other disorders of calcium metabolism). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on E83.59.
Within E83.5, choose E83.59 (Other disorders of calcium metabolism) only when documentation doesn't support a more specific option: unspecified disorder of calcium metabolism (E83.50), hypocalcemia (E83.51) and Hypercalcemia (E83.52).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC, relative weight 1.3395) and DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC, relative weight 0.7865), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Calcinosis codes (official index)
Common questions about Calcinosis ICD-10 codes
What is the ICD-10 code for Calcinosis?
- E83.59 — Other disorders of calcium metabolism. More specific codes apply when the documentation supports them: M34.1, L94.2, L94.2.
What is the ICD-10 code for circumscripta calcinosis?
- L94.2 — Calcinosis cutis.
What is the ICD-10 code for cutis calcinosis?
- L94.2 — Calcinosis cutis.
Is E83.59 billable?
- Yes. E83.59 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E83.59 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E83.59 as a principal diagnosis.
Is E83.59 a CC or MCC?
- No. E83.59 is neither a CC nor an MCC under MS-DRG v44.0.