ICD-10 Z58.6
Billable / SpecificInadequate drinking-water supply
About ICD-10-CM Z58.6
ICD-10-CM code Z58.6 represents Inadequate drinking-water supply. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z58). The 2026 edition of ICD-10-CM Z58.6 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under Z58.6. Per CMS ICD-10-CM Tabular 2026.
- Lack of safe drinking water
Type 2 Excludes
Not included here, the excluded code is not part of Z58.6, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- deprivation of water (T73.1)
Medicare LCD Coverage for Z58.6
Local Coverage Determinations (LCDs) from CMS MACs that list Z58.6 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing Z58.6.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but Z58.6 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with Z58.6
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To Z58.6
Other codes in section Z55-Z65 (Persons with potential health hazards related to socioeconomic and psychosocial circumstances).
ICD-10 Z58.6, Billing FAQ
Is ICD-10 code Z58.6 billable? +
Yes, Z58.6 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to Z58.6? +
ICD-10 Z58.6 includes: Lack of safe drinking water.
What codes are Type 2 Excludes for Z58.6? +
Type 2 Excludes (may be coded together when both conditions exist): deprivation of water (T73.1)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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