E87.4

Mixed disorder of acid-base balance

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

Exclusions 12 never code together

E87code

Excludes1

diabetes insipidus (E23.2)E23.2
electrolyte imbalance associated with hyperemesis gravidarum (O21.1)O21.1
electrolyte imbalance following ectopic or molar pregnancy (O08.5)O08.5
familial periodic paralysis (G72.3)G72.3
metabolic acidemia in newborn, unspecified (P19.9)P19.9

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

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 1

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 5

Abnormal, abnormality, abnormalities — see also Anomaly
- acid-base balance (mixed) E87.4
Disorder (of) — see also Disease
- balance
  - acid-base E87.8
    - mixed E87.4
Disturbance (s) — see also Disease
- acid-base equilibrium E87.8
  - mixed E87.4
Acidosis (lactic) E87.20
- respiratory E87.29
  - complicated by
    - metabolic
      - acidosis E87.4
      - alkalosis E87.4
- metabolic NEC E87.20
  - with respiratory acidosis E87.4
Alkalosis E87.3
- metabolic E87.3
  - with respiratory acidosis E87.4

Alongside this code 8 same parent — E87

Additional references

AHA Coding Clinic® Licence required

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

Maps to no condition category in any loaded model.

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

Present FY2024–FY2027.