O35.C Non-Billable FY2027 Status: Active

O35.C: Mat care other fetal abnlt and damage, fetal pulm anomal

Maternal care for other (suspected) fetal abnormality and damage, fetal pulmonary anomalies

Effective Date: 2026-10-01
Dataset: ICD-10-CM FY2027
Source: Centers for Disease Control and Prevention (CDC)
Last Verified: 2026-10-01
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Quick Clinical & Billing Summary

What is ICD-10-CM code O35.C? O35.C represents Mat care other fetal abnlt and damage, fetal pulm anomal. Under official CDC guidelines, this code is non-billable and requires additional specificity.

Current release: FY2027 (Effective October 1, 2026). Sourced directly from CDC NCHS files.

Code Hierarchy & Classification

⌊ O35.C: Mat care other fetal abnlt and damage, fetal pulm anomal (Current Code)

Clinical Guidance & Documentation Standards

Clinical documentation should substantiate the medical necessity of this diagnosis, including laterality, anatomical site specificity, and clinical severity.

Associated Procedures & Medicare RVU Reimbursement

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Typical outpatient and office evaluation procedures frequently billed alongside diagnosis O35.C:

CPT/HCPCS Description Work RVU Non-Facility Fee Facility Fee
99213 Office/outpatient visit, established patient, 20-29 minutes (Low MDM) 1.30 $91.69 $66.79
99214 Office/outpatient visit, established patient, 30-39 minutes (Moderate MDM) 1.92 $133.61 $100.21
96372 Therapeutic, prophylactic, or diagnostic injection (subcutaneous/intramuscular) 0.17 $18.34 $12.44
Based on official CMS 2026 Physician Fee Schedule conversion factor ($32.7476). Payments vary by locality GPCI.

CPT Modifier & Billing Rules

Modifier 25 Significant E/M

Append when a significant, separately identifiable evaluation and management service is provided on the same calendar day as a minor surgical procedure or injection.

Modifier 59 Distinct Service

Identifies procedures or services not normally reported together but distinct under the clinical circumstances. Use CMS X-modifiers (XE, XS, XP, XU) where required by Medicare.

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Frequently Asked Questions about O35.C

Is O35.C a billable ICD-10 code?

No, O35.C is a non-billable category code that requires additional digits to specify clinical details.

What is the ICD-10 code for Mat care other fetal abnlt and damage, fetal pulm anomal?

The primary ICD-10-CM code for Mat care other fetal abnlt and damage, fetal pulm anomal is O35.C.

What is the effective date of the current O35.C code?

The code is active for fiscal year FY2027, effective starting 2026-10-01.

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Official Provenance: Sourced from CDC / NCHS FY2027 ICD-10-CM files. Report a Data Error
Verified: 2026-10-01