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Home/Diagnosis/ICD-10 Coding for Acidosis

ICD-10 Coding for Acidosis

E87.21
E87.22
E87.20

Complete ICD-10-CM coding and documentation guide for icd-10 coding for acidosis includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Metabolic Acidosis
Acidemia
respiratory acidosis
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Key Information: ICD-10 Coding for Acidosis

Essential facts and insights about ICD-10 Coding for Acidosis

Use ICD-10 code E87.21 for acute metabolic acidosis, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Acute metabolic acidosis

Billable Code
E87.21
Billable

Diagnostic Criteria

clinical:
  • • Presence of acute symptoms and lab values indicating metabolic acidosis.
coding:
  • • Sequence after the underlying cause.

Applicable To

  • • Lactic acidosis
  • • Acute acidemia

Important Notes

  • • Ensure acute vs. chronic distinction is clear in documentation.

Chronic metabolic acidosis

Billable Code
E87.22
Billable

Diagnostic Criteria

clinical:
  • • Bicarbonate <22 mEq/L over 3 months
  • • Stable AGAP 10-12

Applicable To

  • • Chronic acidemia

Important Notes

  • • Document chronicity and underlying conditions clearly.

Metabolic acidosis, unspecified

Billable Code
E87.20
Billable

Diagnostic Criteria

clinical:
  • • pH <7.35 without specific lab values

Applicable To

  • • Unspecified acidemia

Important Notes

  • • Use only when no further specificity is possible.
Ancillary Codes

Additional codes that may be used with this diagnosis

R65.20

Severe sepsis without septic shock

Use when severe sepsis is present without shock, and acidosis is documented.

N18.3

Chronic kidney disease, stage 3

Use when CKD is the underlying cause of chronic acidosis.

Frequently Asked Questions

What is the ICD-10 code for acute metabolic acidosis?

The ICD-10 code for acute metabolic acidosis is E87.21, used when specific lab values indicate acute severity.

How is chronic metabolic acidosis documented?

Chronic metabolic acidosis, coded as E87.22, requires documentation of persistent lab findings over 3 months.

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