E83.31

Familial hypophosphatemia

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 14 never code together

E83.31code

Excludes1

vitamin D-deficiency rickets (E55.0)E55.0

E83code

Excludes1

dietary mineral deficiency (E58-E61)E58-E61
parathyroid disorders (E20-E21)E20-E21
vitamin D deficiency (E55.-)E55.-

E83.3code

Excludes1

adult osteomalacia (M83.-)M83.-
osteoporosis (M80.-)M80.-

Excludes2

disorders of pyrophosphate metabolism (E83.82-)E83.82-

E70-E88block

Excludes1

androgen insensitivity syndrome (E34.5-)E34.5-
congenital adrenal hyperplasia (E25.0)E25.0
hemolytic anemias attributable to enzyme disorders (D55.-)D55.-
Marfan syndrome (Q87.4-)Q87.4-
5-alpha-reductase deficiency (E29.1)E29.1

Excludes2

Ehlers-Danlos syndromes (Q79.6-)Q79.6-

E00-E89chapter

Excludes1

transitory endocrine and metabolic disorders specific to newborn (P70-P74)P70-P74

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 3

E83.31code

Inclusion terms

Vitamin D-resistant osteomalacia
Vitamin D-resistant rickets

E00-E89chapter

Notes

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.E05.8 E07.0 E16-E31 E34.-

Index entries leading here 4

Osteomalacia M83.9
- vitamin-D-resistant in adults E83.31
  - carpus E83.31
  - clavicle E83.31
  - femur E83.31
  - fibula E83.31
  - finger E83.31
  - humerus E83.31
  - ilium E83.31
  - ischium E83.31
  - metacarpus E83.31
  - metatarsus E83.31
  - multiple sites E83.31
  - neck E83.31
  - rib E83.31
  - scapula E83.31
  - skull E83.31
  - tarsus E83.31
  - tibia E83.31
  - toe E83.31
  - ulna E83.31
  - vertebra E83.31
  - radius E83.31
Disorder (of) — see also Disease
- metabolism NOS E88.9
  - phosphorus E83.30
    - hypophosphatemia E83.39
      - familial E83.31
Hypophosphatemia, hypophosphatasia (acquired) (congenital) (renal) E83.39
- familial E83.31
Rickets (active) (acute) (adolescent) (chest wall) (congenital) (current) (infantile) (intestinal) E55.0
- vitamin-D-resistant E83.31

Alongside this code 3 same parent — E83.3

E83.30 Disorder of phosphorus metabolism, unspecified E83.32 Hereditary vitamin D-dependent rickets (type 1) (type 2) E83.39 Other disorders of phosphorus metabolism

Medications 1

4 Hypophosphatemia, Familial drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS28HCC50 RX08HCC42

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: E83.3
Block: E70-E88
Siblings: 3

Present FY2024–FY2027.