ICD-10 D74.8
Billable / Specific CCOther methemoglobinemias
About ICD-10-CM D74.8
ICD-10-CM code D74.8 represents Other methemoglobinemias. This is a billable/specific code in the Blood and Blood-forming Organs chapter (block D74). The 2026 edition of ICD-10-CM D74.8 became effective on October 1, 2025.
Coding Tips for D74.8
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
D74.8 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under D74.8. Per CMS ICD-10-CM Tabular 2026.
- Acquired methemoglobinemia (with sulfhemoglobinemia)
- Toxic methemoglobinemia
Inpatient DRG Impact, CC
codes Other methemoglobinemias. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for D74.8
Local Coverage Determinations (LCDs) from CMS MACs that list D74.8 as a covered diagnosis.
Showing top 10 of 144 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing D74.8.
4 Medicare
CPT Codes Commonly Billed with D74.8
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 83018 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 82175 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 82108 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 84630 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 83015 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 84285 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 82495 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 82300 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 83655 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
- 83785 CMS LCD: Billing and Coding: Heavy Metal Testing CMS LCD
Convert D74.8 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| D74.8 | 2897 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To D74.8
Other codes in section D70-D77 (Other disorders of blood and blood-forming organs).
ICD-10 D74.8, Billing FAQ
Is ICD-10 code D74.8 billable? +
Yes, D74.8 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 D74.8? +
ICD-10 D74.8 includes: Acquired methemoglobinemia (with sulfhemoglobinemia); Toxic methemoglobinemia.
Is D74.8 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with D74.8? +
Procedures frequently paired with D74.8 include: 83018, 82175, 82108, 84630, 83015.
What ICD-9 codes does D74.8 map to? +
Per CMS GEMs, D74.8 maps to ICD-9 codes: 2897. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team