2027 ICD-10-CM Diagnosis Code E83.51Hypocalcemia
ICD-10-CM Codes›E00–E89›E70-E88›E83
- Billable — Valid for Submission
- Not Chronic
E83.51 is a billable ICD-10-CM diagnosis code for hypocalcemia. 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. 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.
- Chronic myopathy with hypocalcemia and hypophosphatemia
- Drug-induced hypocalcemia
- Hypocalcemia
- Hypocalcemia due to chronic kidney disease
- Hypocalcemia of late pregnancy and/or lactation
- Hypocalcemia of puerperium
- Hypocalcemic rickets
- Hypocalcemic tetany
- Hypomagnesemia with secondary hypocalcemia
- Iatrogenic hypocalcemia
- Parathyroid hypocalcemic tetany
- Serum calcium below reference range
- Tetany
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to E83.51: 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 E83.51, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming E83.51: 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.
Disorder (of) See Also: Disease;
hypocalcemia E83.51
Hypocalcemia E83.51
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Hypocalcemia
reduction of the blood calcium below normal. manifestations include hyperactive deep tendon reflexes, chvostek's sign, muscle and abdominal cramps, and carpopedal spasm. (dorland, 27th ed)
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 E83.51 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About E83.51Overview
What is the ICD-10 code for hypocalcemia?
The ICD-10-CM code for hypocalcemia is E83.51 (sometimes written as E8351). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is E83.51 (Disorders of calcium metabolism) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report hypocalcemia on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does E83.51 group to?
When hypocalcemia 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 E83.51 be reported with E20.812?
Not as a rule. The Excludes1 note at E83.5, which applies to E83.51, 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 E83.51?
Under the General Equivalence Mappings, hypocalcemia converts to ICD-9-CM 275.41 (hypocalcemia). The mapping is a direct match.
