A7031 HCPCS Level II Code: Face mask interface, replacement for full face mask, each
HCPCS Level II code, maintained by CMS. Not a CPT code: CPT (HCPCS Level I) is a separate AMA code set that MedCoder does not publish. About HCPCS Level II
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Medicare Coverage & Payment
- CMS short descriptor: Replacement facemask interfa
Source: CMS HCPCS Level II release. Coverage codes indicate how Medicare treats the code, not whether a specific claim will be paid; payer policy and documentation still govern.
Coding context
Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.
Contextual Map
Every relationship of A7031 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Nearest codes (40)
- A7006 — Administration set, with small volume filtered pneumatic nebulizer[Sibling]— CMS HCPCS Level II code set
- A7007 — Large volume nebulizer, disposable, unfilled, used with aerosol compressor[Sibling]— CMS HCPCS Level II code set
- A7008 — Large volume nebulizer, disposable, prefilled, used with aerosol compressor[Sibling]— CMS HCPCS Level II code set
- A7009 — Reservoir bottle, non-disposable, used with large volume ultrasonic nebulizer[Sibling]— CMS HCPCS Level II code set
- A7010 — Corrugated tubing, disposable, used with large volume nebulizer, 100 feet[Sibling]— CMS HCPCS Level II code set
- A7011 — Corrugated tubing, non-disposable, used with large volume nebulizer, 10 feet[Sibling]— CMS HCPCS Level II code set
- A7012 — Water collection device, used with large volume nebulizer[Sibling]— CMS HCPCS Level II code set
- A7013 — Filter, disposable, used with aerosol compressor or ultrasonic generator[Sibling]— CMS HCPCS Level II code set
- and 32 more
Change history
- January 1, 2003 — Added to the code set [Change history]— CMS release files (code change ledger)
Reference
Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.
Sources for this page
Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.
- Code, descriptors, coverage and pricing attributes Official source data
- CMS HCPCS Alpha-Numeric (ANWEB) release — October 2026 quarterly update Release, file and checksum · Publisher’s page
- Change history and date-of-service validity Official source data
- CMS HCPCS quarterly update files, ingested into the change ledger Release, file and checksum · Publisher’s page
- Comparisons, relationships and the contextual map MedCoder-derived relationship
- Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
- Summary and FAQ answers MedCoder editorial explanation
- Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources
Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules
Cite this page
Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.
MedCoder.ai. "A7031 — Face mask interface, replacement for full face mask, each." HCPCS Level II October 2026. https://medcoder.ai/hcpcs/code/a7031-face-mask-interface-replacement-for-full-face-mask-each
Change history
- January 1, 2003Added to the code setFace mask interface, replacement for full face mask, eachHCPCS 2003 changes
Nearest Codes in This Family
Official HCPCS Level II classifications closest to A7031 in its code family, with their registry titles.
- A7026 — High frequency chest wall oscillation system hose, replacement for use with patient owned equipment, each
- A7027 — Combination oral/nasal mask, used with continuous positive airway pressure device, each
- A7028 — Oral cushion for combination oral/nasal mask, replacement only, each
- A7029 — Nasal pillows for combination oral/nasal mask, replacement only, pair
- A7030 — Full face mask used with positive airway pressure device, each
- A7032 — Cushion for use on nasal mask interface, replacement only, each
- A7033 — Pillow for use on nasal cannula type interface, replacement only, pair
- A7034 — Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap
- A7035 — Headgear used with positive airway pressure device
- A7036 — Chinstrap used with positive airway pressure device