Z33.1: Pregnant state, incidental

Z33.1, pregnant state, incidental, is listed as a covered diagnosis in 5 Medicare billing and coding articles that apply to 22 HCPCS Level II codes, including U0002 (2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19)…), U0001 (Cdc 2019 novel coronavirus (2019-ncov) real-time rt-pcr…), J1575 (Injection, immune globulin/hyaluronidase, (hyqvia), 100 mg…). The articles come from 4 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.

HCPCS Level II codes with Z33.1 as a covered diagnosis

CodeDescriptionMedicare coverageDMEPOS fee 2026 (state range)Articles listing it
U00022019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdcCarrier judgment—4
U0001Cdc 2019 novel coronavirus (2019-ncov) real-time rt-pcr diagnostic panelCarrier judgment—4
J1575Injection, immune globulin/hyaluronidase, (hyqvia), 100 mg immuneglobulinCarrier judgment—1
J1569Injection, immune globulin, (gammagard liquid/gammagard liquid erc), 500 mgSpecial coverage instructions apply—1
J1561Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mgSpecial coverage instructions apply—1
J1459Injection, immune globulin (privigen), intravenous, non-lyophilized (e.g., liquid), 500 mgCarrier judgment—1
J1557Injection, immune globulin, (gammaplex), intravenous, non-lyophilized (e.g., liquid), 500 mgCarrier judgment—1
J1556Injection, immune globulin (bivigam), 500 mgCarrier judgment—1
J1568Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mgCarrier judgment—1
J1566Injection, immune globulin, intravenous, lyophilized (e.g., powder), not otherwise specified, 500 mgSpecial coverage instructions apply—1
J1554Injection, immune globulin (asceniv), 500 mgCarrier judgment—1
J1599Injection, immune globulin, intravenous, non-lyophilized (e.g., liquid), not otherwise specified, 500 mgCarrier judgment—1
J1572Injection, immune globulin, (flebogamma/flebogamma dif), intravenous, non-lyophilized (e.g., liquid), 500 mgSpecial coverage instructions apply—1
J1460Injection, gamma globulin, intramuscular, 1 ccSpecial coverage instructions apply—1
J1670Injection, tetanus immune globulin, human, up to 250 unitsSpecial coverage instructions apply—1
J0840Injection, crotalidae polyvalent immune fab (ovine), up to 1 gramCarrier judgment—1
J0850Injection, cytomegalovirus immune globulin intravenous (human), per vialSpecial coverage instructions apply—1
J1552Injection, immune globulin (alyglo), 500 mgCarrier judgment—1
J1560Injection, gamma globulin, intramuscular, over 10 ccSpecial coverage instructions apply—1
J1571Injection, hepatitis b immune globulin (hepagam b), intramuscular, 0.5 mlSpecial coverage instructions apply—1
J1573Injection, hepatitis b immune globulin (hepagam b), intravenous, 0.5 mlCarrier judgment—1
J1577Injection, immune globulin (qivigy), 100 mgCarrier judgment—1

Medicare policy articles listing Z33.1

A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.

Other Z33 diagnoses (Pregnant state)

Frequently asked questions

Does Medicare cover Z33.1 (Pregnant state, incidental)?

Medicare covers items and services, not diagnoses. 5 Medicare billing and coding articles list Z33.1 as a covered diagnosis for 22 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.

Which HCPCS codes can be billed with ICD-10 Z33.1?

The Level II codes from the policies most specific to this diagnosis are U0002 (2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19)…, 4 articles); U0001 (Cdc 2019 novel coronavirus (2019-ncov) real-time rt-pcr…, 4 articles); J1575 (Injection, immune globulin/hyaluronidase, (hyqvia), 100 mg…, 1 article); J1569 (Injection, immune globulin, (gammagard liquid/gammagard…, 1 article); J1561 (Injection, immune globulin, (gamunex-c/gammaked)…, 1 article). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list Z33.1?

A58710 (Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing); A58720 (Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing); A58761 (Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing), and 2 more articles.

What is ICD-10-CM code Z33.1?

Z33.1 is the ICD-10-CM code for pregnant state, incidental, in category Z33 (Pregnant state), chapter 22: Factors influencing health status and contact with health services.

Next steps

Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.

Chapter 22: Factors influencing health status and contact with health services · All diagnoses · HCPCS lookup