2027 ICD-10-CM Diagnosis Code E83.50Unspecified disorder of calcium metabolism
ICD-10-CM Codes›E00–E89›E70-E88›E83
- Billable — Valid for Submission
- Chronic Condition
E83.50 is a billable ICD-10-CM diagnosis code for unspecified disorder of calcium metabolism. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 640 through 641. Coders also document this condition as articular cartilage disorder of elbow. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified nutritional and metabolic disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Articular cartilage disorder of elbow
- Chondrocalcinosis of elbow due to disorder of calcium metabolism
- Chondrocalcinosis of elbow joint
- Chondrocalcinosis of hand due to disorder of calcium metabolism
- Chondrocalcinosis of hip joint
- Chondrocalcinosis of hip joint due to disorder of calcium metabolism
- Chondrocalcinosis of joint of hand
- Disorder of calcium metabolism
- Phosphorus and calcium disorders
- Secondary chondrocalcinosis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to E83.50: its own notes plus those printed at E83.5, E83, block E70-E88, and Chapter 4. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- Ehlers-Danlos syndromes (Q79.6-)
Notes
General instructions on how these codes are used.
- All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name E83.50, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming E83.50: they are not reported together with it, unless the two conditions are unrelated.
- E58 Dietary calcium deficiencydisorders of calcium metabolism (E83.5-) names E83.5-, which includes this code
- E61 Deficiency of other nutrient elementsdisorders of mineral metabolism (E83.-) names E83.-, which includes this code
- R79.0 Abnormal level of blood mineraldisorders of mineral metabolism (E83.-) names E83.-, which includes this code
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
metabolism disorder E83.50
Disorder (of) See Also: Disease;
calcium E83.50
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Calcium
Calcium is a mineral, a nutrient that you need (in small amounts) to keep your body healthy. You have more calcium in your body than any other mineral.
The full article covers:
- What is calcium and why do I need it?
- How do I get calcium?
- How much calcium do I need?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert E83.50 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About E83.50Overview
What is the ICD-10 code for unspecified disorder of calcium metabolism?
The ICD-10-CM code for unspecified disorder of calcium metabolism is E83.50 (sometimes written as E8350). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is E83.50 (Disorders of calcium metabolism) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified disorder of calcium metabolism on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does E83.50 group to?
When unspecified disorder of calcium metabolism is the principal diagnosis on an inpatient stay, it groups to MS-DRG 641, 640, with relative weights from 0.7864 to 1.3392 depending on complications. Higher weights mean higher Medicare reimbursement.
Can E83.50 be reported with E20.812?
Not as a rule. The Excludes1 note at E83.5, which applies to E83.50, lists "autoimmune hypoparathyroidism (E20.812)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of E83.50?
Under the General Equivalence Mappings, unspecified disorder of calcium metabolism converts to ICD-9-CM 275.40 (dis calcium metablsm NOS). The mapping is a direct match.
